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An electric dryer consumes 6.0 x 106 joules of
energy when operating at 220 volts for 30 minutes. During operation the dryer
draws a current of approximately?
A. 10 A
B. 15 A
C. 20 A
D. 25 A
When 8.0 electronvolt photons strike a photo
emissive surface, the maximum kinetic energy of ejected photoelectrons is 6.0
electronvolts. The work function of the photo emissive surface is
A. .01 eV
B. 1.0 eV
C. 2.0 eV
D. 3.0 eV
A high resistance is connected in series with
the internal coil of a galvanometer to make?
A. An ammeter
B. A motor
C. A generator
D. A voltmeter
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