Electric motor primarily converts
electrical energy into chemical energy
electrical energy into heat energy
kinetic energy into potential energy
electrical energy into mechanical energy
mechanical energy into light energy
Correct answer is D
No explanation has been provided for this answer.
V2lt
I2t/R
l2Rt
lR2tR
V2Rt
Correct answer is C
No explanation has been provided for this answer.
0.0 V
1.5 V
2.0 V
3.0V
4.0 V
Correct answer is A
No explanation has been provided for this answer.
Which of the following is not a conductor of electricity?
Human body
Glass
Silver
Earth
Copper
Correct answer is B
No explanation has been provided for this answer.
Calculate the current, I in the diagram shown above.
(Neglect the internal resistance of the cell)
4.0A
2.0A
1.0A
0.5A
0.1A
Correct answer is C
R = 2 + 2 = 4 Ω; 1/R = ¼ + ¼ = 2/4; R = 2Ω
∴ I = V/R = 2/2 = 1A
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