MCQ
Sensitivity of potentiometer can be increased by:
- AIncreasing the e.m.f of the cell.
- BIncreasing the length of the potentiometer.
- CDecreasing the length of the potentiometer wire.
- DNone of these.
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Between the plates of a parallel plate condenser there is 1mm thick paper of dielectric constant 4. It is charged at 100 volt. The electric field in volt/metre between the plates of the capacitor is
|
(a) 100 |
(b) 100000 |
(c) 25000 |
(d) 4000000 |