1. Increases
2. Decreases
3. Remains the same
4. May increase or decrease
Increases
1. electrons
2. holes
3. free electrons
4. None of these
holes
1. infinity
2. zero
3. unity
4. positive
unity
1. A.C
2. D.C
3. AC and DC
4. None of these
AC and DC
1. 250-300V
2. 110-220V
3. 220-230V
4. 400-420V
220-230V
1. 50Hz
2. 40Hz
3. 25Hz
4. 60Hz
50Hz
1. Primary winding
2. Secondary winding
3. High voltage winding
4. Low voltage winding
High voltage winding
1. to reduce copper losses
2. to reduce hysteresis losses
3. to reduce eddy current losses
4. Both (1) and (3)
to reduce hysteresis losses
1. by reducing the thickness of the iron core laminations
2. by controlling silicon content of the steel laminations
3. by reducing the load on the transformer
4. None of these
by reducing the thickness of the iron core laminations
1. To Increase the speed
2. To Prevent Friction between the Mating Parts
3. To avoid heat
4. None of These
To Prevent Friction between the Mating Parts