Electricity And Magnetism - Study Mode
[#216] Which of the following devices converts chemical energy into electrical energy?
Correct Answer
(D) electric cell
[#217] A 100 W electric bulb is used for 10 h/day. How many units of energy are consumed in 30 days?
Correct Answer
(C) 30 units
[#218] $$R = frac{{{R_1}{R_2}}}{{{R_1} + {R_2}}}$$xa0 the formula represent?
Correct Answer
(B) Parallel combination
[#219] The dynamo converts
Correct Answer
(A) mechanical energy into electrical energy
[#220] If the resistance is reduced to half, the current . . . . . . . .
Correct Answer
(A) doubles