Physics questions
20027 published questions with worked solutions.
- 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 metre bridge experiment, unknown resistance X and known resistance of 60 , is connected in left and right gap of a metre...
- 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 ?
- In a metre bridge experiment l_x and l_r are the balancing lengths and R is known resistance then unknown resistance is given by
- Which of the following statement is not correct in metre bridge experiment ?
- In the measurement of resistance by a metre bridge, the known and unknown resistance are interchanged to eliminate
- Metre bridge is the modification of
- Metre bridge is used to
- For the accurate measurement of resistance by metre bridge, the null point should be obtained
- In a balanced metre bridge, the segment of wire opposite to a resistance of 70 , is 70 cm. The unknown resistance is
- With resistances P and Q in the left and the right gap respectively of a metre 3 : 4. When P and Q are increased by 20 , each,...
- In Kelvin’s method of finding the resistance of a galvanometer, we
- If the resistance of the right gap of a metre bridge is heated, its balance point shifts to