Advertisements
Advertisements
प्रश्न
An electric current flowing in a wire creates ______ around the wire.
Advertisements
उत्तर
An electric current flowing in a wire creates magnetic field around the wire.
संबंधित प्रश्न
In which direction do electrons flow?
A current of 4 A flows around a circuit for 10 s. How much charge flows past a point in the circuit in this time?
The p.d. across a 3 Ω resistor is 6 V. The current flowing in the resistor will be:
(a) `1/2A`
(b) 1 A
(c) 2 A
(d) 6 A
Using the circuit given below, state which of the following statement is correct?
(a) When S1 and S2 are closed, lamps A and B are lit.22
(b) With S1 open and S2 closed, A is lit and B is not lit.
(c) With S2 open and S1 closed A and B are lit.
(d) With S1 closed and S2 open, lamp A remains lit even if lamp B gets fused.
Draw a schematic diagram of an electric circuit consisting of a battery of two cells each of 1.5 V, 5 Ω, 10 Ω and 15 Ω resistors and a plug key, all connected in series.
Fill in the blank :
1 mA = ............................. A.
State the condition when it is advantageous to connect cells in parallel.
1020 electrons, each having a charge of 1.6 x 10-19 C, flows in a circuit V is 0.1s. What is the current in ampere?
