# Question

A student makes a simple ac generator by using a single square wire loop 10 cm on a side. The loop is then rotated at a frequency of 60 Hz in a magnetic field of 0.015 T.

(a) What is the maximum emf output?

(b) If she wanted to make the maximum emf output ten times larger by adding loops, how many should she use in total?

(a) What is the maximum emf output?

(b) If she wanted to make the maximum emf output ten times larger by adding loops, how many should she use in total?

## Answer to relevant Questions

A simple ac generator consists of a coil with 10 turns (each turn has an area of 50 cm2). The coil rotates in a uniform magnetic field of 350 mT with a frequency of 60 Hz. (a) Write an expression in the form of Eq. 20.5 for ...(a) To increase the output of an ac generator, a student has the choice of doubling either the generator’s magnetic field or its frequency. To maximize the increase in emf output, (1) he should double the magnetic field, ...The transformer in the power supply for a computer’s 500-GB external hard drive changes a 120-V input voltage (from a regular house line) to the 5.0-V output voltage that is required to power the drive. (a) Find the ratio ...A small plant produces electric energy and, through a transformer, sends it out over the transmission lines at 50 A and 20 kV. The line reaches a small town over 25-km-long transmission lines whose resistance is 1.2 Ω /km. ...Microwave ovens can have cold spots and hot spots due to standing electromagnetic waves, analogous to standing wave nodes and antinodes in strings (Fig. 20.32). (a) The longer the distance between the cold spots, (1) the ...Post your question

0