A transistor functions mainly as a
Switch and an amplifier
Rectifier and an amplifier
Charge store and a switch
Charge store and an amplifier
The bob of a simple pendulum takes 8s to complete 10 oscillations. Determine the frequency of oscillation of the bob.
0.8 Hz
1.25 Hz
7.5 Hz
8 Hz
Which of the following pairs of concepts constitutes complementary variables as expressed by the Heisenberg uncertainty principle?
Momentum and time
Energy and acceleration
Position and momentum
Velocity and momentum
Lenz's law is a law of the conservation of
Momentum
Energy
Electric current
Electric charge
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