in the potentiometer circuit shown the balance point is at x
Q21. In the potentiometer circuit shown, the balance point is at x. State with reason, where the balance point will be shifted when,
(i) resistance R is increased, keeping all barometers unchanged.
(ii) resistance S is increased, keeping R constant
(iii) cell p is replaced by another cell whose emf is lower. Then that of all Q. in the potentiometer circuit shown the balance point is at x
Dear Student,
Answers -
i) If resistance R is increased keeping all other parameters same, null point X will be shifted towards forwards.
ii) If resistance S is increased keeping R constant, balance point X shifts towards backwards.
iii) If cell P is replaced by another cell Q with less EMF, null point X shifts towards backwards.
Regards
Answers -
i) If resistance R is increased keeping all other parameters same, null point X will be shifted towards forwards.
ii) If resistance S is increased keeping R constant, balance point X shifts towards backwards.
iii) If cell P is replaced by another cell Q with less EMF, null point X shifts towards backwards.
Regards