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प्रश्न
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उत्तर
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संबंधित प्रश्न
The lamps in a house hold circuit are connected in parallel because:
(a) this way they required less current
(b) if one lamp fails the others remain lit
(c) this way they require less power
(d) if one lamp fails the other also fail
State two differences between the e.m.f and terminal voltage of a cell.
60 joules of heat was dissipated in a resistor when 20 C flowed for 5 s. Calculate:
(a) P.d. across the resistor,
(b) Resistance of the resistor, and
(c) Average power dissipated in the resistor.
Tick (✓) the correct choice among the following :
In fig .XY is at right angles to the magnetic field. The direction in
which XY should be moved to induce an electron flow in the direction Y to X as indicated by the arrow is
What is the speed of electric current?
The power of an electric device is a product of ______ and ______.
Unit of electric power may also be expressed as
Problems for practice:
If 5A current flows through a circuit, then convert the current in terms of microampere?
