If the radiant energy from the sun comes in as a plane EM wave of intensity 1340 W/m2,calculate the peak values of E and B.

A) 300 V/m,10−4 T B) 1 000 V/m,3.35 × 10−6 T C) 225 V/m,1.60× 10−3 T D) 111 V/m,3.00 × 10−5 T E) 711 V/m,2.37 × 10−6 T A) 300 V/m,10−4 T B) 1 000 V/m,3.35 × 10−6 T C) 225 V/m,1.60× 10−3 T D) 111 V/m,3.00 × 10−5 T E) 711 V/m,2.37 × 10−6 T

Exam 34: Electromagnetic Waves

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A spherical particle of density And 2.00 mm radius is located at the same distance from the Sun as the Earth.R_SE = 1.5 × 10¹¹ m. )If the particle absorbs 100 percent of the sunlight reaching it,the ratio of the force exerted by the solar radiation to the force of gravity exerted on the particle by the Sun is

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A solar cell has a light-gathering area of 10 cm² and produces 0.2 A at 0.8 V (DC)when illuminated with S = 1 000 W/m² sunlight.What is the efficiency of the solar cell?

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At a distance of 10 km from a radio transmitter,the amplitude of the E-field is 0.20 volts/meter.What is the total power emitted by the radio transmitter?

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The Earth is 1.49 × 10¹¹ meters from the sun.If the solar radiation at the top of the Earth's atmosphere is 1340 W/m²,what is the total power output of the sun?

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Question 4

A 100-kW radio station emits EM waves in all directions from an antenna on top of a mountain.What is the intensity of the signal at a distance of 10 km?

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Question 5

A plane parallel plate capacitor has plates of 10 cm² area that are 1.0 mm apart.At an instant when charge is being accumulated on the plates at a rate of 12 nC/s,the displacement current between the plates is

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Question 6

What is the average value of the magnitude of the Poynting vector At 1 meter from a 100-watt lightbulb radiating in all directions?

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Question 7

The speed of light is given by the value of

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Question 8

You can raise the temperature of an object with

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Question 9

If the radiant energy from the sun comes in as a plane EM wave of intensity 1340 W/m²,calculate the peak values of E and B.

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Question 10

An FM radio station broadcasts at 98.6 MHz.What is the wavelength of the radiowaves?

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Question 11

The magnetic field of a plane-polarized electromagnetic wave moving in the z-direction is given by In SI units.What is the speed of the EM wave?

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Question 12

The correct form of Ampere's law for circuits with gaps in them is

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Question 13

What is the maximum radiation pressure exerted by sunlight in space (S = 1350 W/m²)on a flat black surface?

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Question 14

When E and B are the amplitudes of the electric and magnetic fields in an electromagnetic wave in vacuum,the total average energy density in the wave is

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Question 15

The magnetic field of a plane-polarized electromagnetic wave moving in the z-direction is given by In SI units.Find the average power per square meter carried by the EM wave.

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Question 16

The magnetic field amplitude in an electromagnetic wave in vacuum is related to the electric field amplitude by B =

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Question 17

The sun radiates energy at a rate of 3.86 × 10²⁶ W.Its radius is 7.0 × 10⁸ m.If the distance from the Earth to the sun is 1.5 × 10¹¹ m,what is the intensity of solar radiation at the top of the Earth's atmosphere?

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Question 18

An open circuit consists of a 12 μF parallel plate capacitor charged to 200 V and a 10 Ω resistor.At the instant when a switch closes the circuit (with no battery in it)the displacement current between the plates of the capacitor is

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Question 19

Two identical silver spheres of mass m and radius r are placed a distance R (sphere 1)and 2R (sphere 2)from the sun respectively.The ratio of the gravitational force exerted by the sun on sphere 1 to the pressure of solar radiation on sphere 1 is T₁;the ratio for sphere 2 is T₂.The ratio of T₂ to T₁ is

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Question 20

Showing 1 - 20 of 40

Exam 34: Electromagnetic Waves

A solar cell has a light-gathering area of 10 cm2 and produces 0.2 A at 0.8 V (DC)when illuminated with S = 1 000 W/m2 sunlight.What is the efficiency of the solar cell?

At a distance of 10 km from a radio transmitter,the amplitude of the E-field is 0.20 volts/meter.What is the total power emitted by the radio transmitter?

The Earth is 1.49 × 1011 meters from the sun.If the solar radiation at the top of the Earth's atmosphere is 1340 W/m2,what is the total power output of the sun?

A 100-kW radio station emits EM waves in all directions from an antenna on top of a mountain.What is the intensity of the signal at a distance of 10 km?

A plane parallel plate capacitor has plates of 10 cm2 area that are 1.0 mm apart.At an instant when charge is being accumulated on the plates at a rate of 12 nC/s,the displacement current between the plates is

What is the average value of the magnitude of the Poynting vector At 1 meter from a 100-watt lightbulb radiating in all directions?

The speed of light is given by the value of

You can raise the temperature of an object with

If the radiant energy from the sun comes in as a plane EM wave of intensity 1340 W/m2,calculate the peak values of E and B.

An FM radio station broadcasts at 98.6 MHz.What is the wavelength of the radiowaves?

The magnetic field of a plane-polarized electromagnetic wave moving in the z-direction is given by In SI units.What is the speed of the EM wave?

The correct form of Ampere's law for circuits with gaps in them is

What is the maximum radiation pressure exerted by sunlight in space (S = 1350 W/m2)on a flat black surface?

When E and B are the amplitudes of the electric and magnetic fields in an electromagnetic wave in vacuum,the total average energy density in the wave is

The magnetic field of a plane-polarized electromagnetic wave moving in the z-direction is given by In SI units.Find the average power per square meter carried by the EM wave.

The magnetic field amplitude in an electromagnetic wave in vacuum is related to the electric field amplitude by B =

The sun radiates energy at a rate of 3.86 × 1026 W.Its radius is 7.0 × 108 m.If the distance from the Earth to the sun is 1.5 × 1011 m,what is the intensity of solar radiation at the top of the Earth's atmosphere?

An open circuit consists of a 12 μF parallel plate capacitor charged to 200 V and a 10 Ω resistor.At the instant when a switch closes the circuit (with no battery in it)the displacement current between the plates of the capacitor is

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A solar cell has a light-gathering area of 10 cm² and produces 0.2 A at 0.8 V (DC)when illuminated with S = 1 000 W/m² sunlight.What is the efficiency of the solar cell?

The Earth is 1.49 × 10¹¹ meters from the sun.If the solar radiation at the top of the Earth's atmosphere is 1340 W/m²,what is the total power output of the sun?

A plane parallel plate capacitor has plates of 10 cm² area that are 1.0 mm apart.At an instant when charge is being accumulated on the plates at a rate of 12 nC/s,the displacement current between the plates is

If the radiant energy from the sun comes in as a plane EM wave of intensity 1340 W/m²,calculate the peak values of E and B.

What is the maximum radiation pressure exerted by sunlight in space (S = 1350 W/m²)on a flat black surface?

The sun radiates energy at a rate of 3.86 × 10²⁶ W.Its radius is 7.0 × 10⁸ m.If the distance from the Earth to the sun is 1.5 × 10¹¹ m,what is the intensity of solar radiation at the top of the Earth's atmosphere?