Function of rectifier is
|
(a) To convert ac into dc |
(b) To convert dc into ac |
|
(c) Both (a) and (b) |
(d) None of these |
Function of rectifier is
|
(a) To convert ac into dc |
(b) To convert dc into ac |
|
(c) Both (a) and (b) |
(d) None of these |
(a) To convert ac into dc
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The positive temperature coefficient of resistance is for
|
(a) Carbon |
(b) Germanium |
(c) Copper |
(d) An electrolyte |
The current from the battery in circuit diagram shown is
|
(a) 1 A |
(b) 2 A |
(c) 1.5 A |
(d) 3 A |
Which curve may best represent the current deflection in a tangent galvanometer
|
(a) A |
(b) B |
(c) C |
(d) D |
An aeroplane in which the distance between the tips of wings is 50 m is flying horizontally with a speed of 360 km/hr over a place where the vertical components of earth magnetic field is 2.0
. The potential difference between the tips of wings would be
|
(a) 0.1 V |
(b) 1.0 V |
(c) 0.2 V |
(d) 0.01 V |
If a hole is made at the centre of a bar magnet, then its magnetic moment will
| (a) Increase | (b) Decrease | (c) Not change | (d) None of these |