- AStraight line
- BParabola
- ✓Hyperbola
- DCircle
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The error in measuring the current with a tangent galvanometer is minimum when the deflection is about
|
(a) 0o |
(b) 30o |
(c) 45o |
(d) 60o |
Some magnetic flux is changed from a coil of resistance 10 ohm. As a result an induced current is developed in it, which varies with time as shown in figure. The magnitude of change in flux through the coil in webers is

|
(a) 2 |
(b) 4 |
(c) 6 |
(d) None of these |
The refractive index of the material of the prism and liquid are 1.56 and 1.32 respectively. What will be the value of q for the following refraction

|
(a) sinθ ≥ |
(b) sinθ ≥ |
(c) sinθ ≥ |
(d) sinθ ≥ |
If six identical cells each having an e.m.f. of 6V are connected in parallel, the e.m.f. of the combination is
|
(a) 1 V |
(b) 36 V |
(c) |
(d) 6 V |
If the two ends P and N of a P-N diode junction are joined by a wire
|
(a) There will not be a steady current in the circuit |
|
(b) There will be a steady current from N side to P side |
|
(c) There will be a steady current from P side to N side |
|
(d) There may not be a current depending upon the resistance of the connecting wire |