A 41-turn square coil of area 0.074 m2 and a 123-turn circular coil are both placed perpendicular to the same changing magnetic field. The voltage induced in each of the coils is the same. What is the area of the circular coil?
a. 0.22 m2
b. 0.82 m2
c. 0.025 m2
d. 0.074 m2
e. 0.67 m2
c
You might also like to view...
It is 39 trillion miles to the nearest star beyond the sun. Expressed in powers of ten, this is
A) 3.9 × 1013. B) 3.9 × 109. C) 3.9 × 1010. D) 3.9 × 1012.
Consider a toroidal coil, which is essentially a solenoid bent into a circle. The field created by such a coil is
A. unidirectional. B. circular. C. axial. D. None of the above.
The lesser amount of a substance in a solution is generally called the
a. solute. b. salt. c. solvent. d. alloy.
If two stars are the same temperature, how can one be more luminous than the other?
A. It can be closer. B. It can be a different spectral type. C. It can have stronger magnetic fields. D. It can have a larger radius. E. It can have a larger reaction rate in the core.