Question

An ultra-high-frequency television loop antenna has a diameter of 11 cm. The magnetic field of a...

An ultra-high-frequency television loop antenna has a diameter of 11 cm. The magnetic field of a TV signal is normal to the plane of the loop and, at one instant of time, its magnitude is changing at the rate 0.16 T/s. The magnetic field is uniform. What emf is induced in the antenna?

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A time-varying magnetic field is perpendicular to the plane of a circular loop of diameter 10...
A time-varying magnetic field is perpendicular to the plane of a circular loop of diameter 10 cm made with wire of diameter 3.4 mm and resistivity 2.07 × 10-8?·m. The magnetic field increases as a function of time, with magnitude B = (0.79 t) T/s a) What is the magnitude of the emf induced in the loop? b) What is the value of the current through the loop? c) At what rate does energy appear as thermal energy in the...
A 26.8 cm-diameter loop of wire is initially oriented perpendicular to a 1.6 T magnetic field....
A 26.8 cm-diameter loop of wire is initially oriented perpendicular to a 1.6 T magnetic field. The loop is rotated so that its plane is parallel to the field direction in 0.22 s . What is the magnitude of the average induced emf in the loop? Express your answer using two significant figures. Eavg=    V
A 20-turn coil with a diameter of 6.00 cm is placed in a constant, uniform magnetic...
A 20-turn coil with a diameter of 6.00 cm is placed in a constant, uniform magnetic field of 1.00 T directed perpendicular to the plane of the coil. Beginning at time t = 0 s, the field is increased at a uniform rate until it reaches 1.30 T at t = 10.0 s. The field remains constant thereafter. 1) What is the magnitude of the induced emf in the coil at t < 0 s? 2) What is the magnitude...
A circular loop in the plane of the paper lies in a 0.76 T magnetic field...
A circular loop in the plane of the paper lies in a 0.76 T magnetic field pointing into the paper. If the loop's diameter changes from 20.2 cm to 9.6 cm in 0.56 s. What is the direction of the induced current? What is the magnitude of the average induced emf?
A circular loop in the plane of the paper lies in a 0.38 T magnetic field...
A circular loop in the plane of the paper lies in a 0.38 T magnetic field pointing into the paper. Part A: If the loop's diameter changes from 19.4 cm to 5.8 cm in 0.49 s , what is the direction of the induced current? Part B: What is the magnitude of the average induced emf?
A circular loop in the plane of the paper lies in a 0.65 T magnetic field...
A circular loop in the plane of the paper lies in a 0.65 T magnetic field pointing into the paper. If the loop's diameter changes from 19.4 cm to 7.2 cm in 0.15 s , what is the direction of the induced current? What is the magnitude of the average induced emf? If the coil resistance is 3.3 ? , what is the average induced current?
A magnetic field is passing through a loop of wire whose area is 0.014 m2. The...
A magnetic field is passing through a loop of wire whose area is 0.014 m2. The direction of the magnetic field is parallel to the normal to the loop, and the magnitude of the field is increasing at the rate of 0.29 T/s. (a) Determine the magnitude of the emf induced in the loop. (b) Suppose the area of the loop can be enlarged or shrunk. If the magnetic field is increasing as in part (a), at what rate (in...
A circular loop in the plane of the paper lies in a 0.75 T magnetic field...
A circular loop in the plane of the paper lies in a 0.75 T magnetic field pointing into the paper. The loop’s diameter is changed from 20.0 cm to 6.0 cm in 0.50 s. Determine the direction of the induced current and justify your answer. Determine the magnitude of the average induced emf. If the coil resistance is 2.5 Ω, what is the average induced current?
Question 1: A 13.7 cm diameter loop of wire is initially oriented perpendicular to a 1.9...
Question 1: A 13.7 cm diameter loop of wire is initially oriented perpendicular to a 1.9 T magnetic field. The loop is rotated so that its plane is parallel to the field direction in 0.33 s . Part A: What is the average induced emf in the loop? Question 2: A 7.4 cm diameter circular loop of wire is in a 0.71 T magnetic field. The loop is removed from the field in 0.28 s . Assume that the loop...
Shrinking Loop. A circular loop of flexible iron wire has an initial circumference of 168 cm...
Shrinking Loop. A circular loop of flexible iron wire has an initial circumference of 168 cm , but its circumference is decreasing at a constant rate of 10.0 cm/s due to a tangential pull on the wire. The loop is in a constant uniform magnetic field of magnitude 1.00 T , which is oriented perpendicular to the plane of the loop. Assume that you are facing the loop and that the magnetic field points into the loop. Find the magnitude...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT