When a magnet is moved to and fro in a wire coil, voltage is induced. If the coil has twice as many loops, the voltage induced is

A) half.
B) the same.
C) twice.
D) four times as much.
E) none of the above


Answer: C

Physics & Space Science

You might also like to view...

Photon Momentum: If the wavelength of a photon is the same as the de Broglie wavelength of an electron, which one has the greater momentum?

A. The electron because it has more mass. B. The photon because it is traveling faster. C. They both have the same momentum.

Physics & Space Science

Using a capacitor and two different value resistors, which of the following combinations in an RC circuit would give the greatest time constant?

a. the capacitor in series with both resistors in parallel with each other b. the capacitor in series with both resistors in series with each other c. the capacitor in series with the higher value resistor d. the capacitor in series with the lower value resistor

Physics & Space Science

Ideal Gas Law: On a cold day, you take in 4.2 L of air into your lungs at a temperature of 0°C. If you hold your breath until the temperature of the air in your lungs reaches 37°C, what is the volume of the air in your lungs at that point, assuming the pressure does not change?

A. 4.2 L B. 4.4 L C. 4.6 L D. 4.8 L E. 5.0 L

Physics & Space Science

When we use an analogy that represents the expanding universe with the surface of an expanding balloon, what does the inside of the balloon represent?

A) The inside of the balloon does not represent any part of our universe. B) the center of the universe C) the entire universe D) regions of the universe beyond the Milky Way Galaxy

Physics & Space Science