Electricity And Magnetism - Study Mode
[#171] When you walk on a woolen carpet and bring your finger near the metallic handle of a door, an electric shock is produced. This is because
Correct Answer
(A) charge is transferred from your body to the handle
[#172] . . . . . . . . across the ends of a resistance is directly proportional to the current flowing throught it, provided its temperature remains the same.
Correct Answer
(D) Potential difference
[#173] If the three resistors of 10 Ω, 8 Ω and 7 Ω are connected in series order, then the effective resistance in the circuit will be . . . . . . .
Correct Answer
(D) 25 Ω
[#174] The device which works on the principle of electromagnetic induction is
Correct Answer
(C) Dynamo
[#175] Which of the following is not true about electromagnetic?
Correct Answer
(C) cannot be polarized