- ✓only moment
- Bonly one force
- Cforce and moment
- Dnone of these
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A coil takes 15 min to boil a certain amount of water, another coil takes 20 min for the same process. Time taken to boil the same amount of water when both coil are connected in series
|
(a) 5 min |
(b) 8.6 min |
(c) 35 min |
(d) 30 min |
Two circular coils can be arranged in any of the three situations shown in the figure. Their mutual inductance will be

|
(a) Maximum in situation (A) |
(b) Maximum in situation (B) |
|
(c) Maximum in situation (C) |
(d) The same in all situations |
The electron in the beam of a television tube move horizontally from south to north. The vertical component of the earth's magnetic field points down. The electron is deflected towards
|
(a) West |
(b) No deflection |
(c) East |
(d) North to south |
Tangent galvanometer is used to measure
| (a) Steady currents | (b) Current impulses |
| (c) Magnetic moments of bar magnets | (d) Earth's magnetic field |