Current Electricity questions
395 published questions with worked solutions.
- The sensitivity of Wheatstones network depends upon the value of
- The wheatstone’s bridge is maximum sensitive, when all the four resistances are in
- The wheatstone’s bridge is most sensitive when the arm ratio is equal to
- Post office box is an arrangement of finding resistance of a conductor and it makes use of
- Four resistances 10, 10, 10 and 15 , are connected so as to from wheatstone’s bridge. The resistance connected across 15 ,...
- In a Wheatstone’s bridge, the positions of the battery and the galvanometer are interchanged. In this case the balance condition.
- The sensitivity of the wheatstone’s bridge depends upon the value of
- Wheatstone bridge is an arrangement used for measuring
- A Wheatstone’s bridge ABCD has resistance AB=2 , , BC=4 , , AD=2 , and CD=4 , The point A and C are jointed by a resistance of 6...
- Four resistors P, Q., R and S having resistances 2 , , 2 , , 2 , and 3 , respectively, are arranged to from a Wheatstone’s...
- In a given network, the equivalent resistance between A and B is :
- Which of the following instrument is generally used with a galvanometer to show nil reading ?
- Metre bridge is the modification of
- A cell sends current of 1 A through a circuit of resistance 5 , . The emf of cell of internal resistance 1 , will be :
- The balancing lengths for the cells of e. m. f. E_1 and E_2 are l_1 and l_2 respectively. If they are connected separately then
- The internal resistance of the cell can be determined by,
- In comparing e. m. f. of two cells by a potentiometer balance point is obtained on 5th wire, the current flowing through the wire...
- When null point is obtained in the potentiometer the current is drawn from
- The potentiometer wire of resistance R is connected in series with a cell of e. m. f. E and of internal resistance r along with...
- The current, in a potentiometer wire of 100 cm length, is adjusted to give a null point at 50 cm with a standard cell of e. m. f....
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