EASY
12th CBSE
IMPORTANT
Earn 100

What are the advantages of a Wheatstone bridge method of measuring resistance over other methods?

Important Questions on Current Electricity

EASY
12th CBSE
IMPORTANT
New Simplified Physics (Vol 1) For Class 12>Chapter 3 - Current Electricity>VERY SHORT ANSWER CONCEPTUAL PROBLEMS>Q 68
Why are the connecting resistors in a metre bridge made of thick copper strips?
EASY
12th CBSE
IMPORTANT
New Simplified Physics (Vol 1) For Class 12>Chapter 3 - Current Electricity>VERY SHORT ANSWER CONCEPTUAL PROBLEMS>Q 69
Why is Wheatstone bridge (or metre bridge) method considered unsuitable for the measurement of very low resistances?
EASY
12th CBSE
IMPORTANT
New Simplified Physics (Vol 1) For Class 12>Chapter 3 - Current Electricity>VERY SHORT ANSWER CONCEPTUAL PROBLEMS>Q 70
Why is metre bridge method considered unsuitable for the measurement of very high resistance?
EASY
12th CBSE
IMPORTANT
New Simplified Physics (Vol 1) For Class 12>Chapter 3 - Current Electricity>VERY SHORT ANSWER CONCEPTUAL PROBLEMS>Q 71
Why is Wheatstone bridge method suitable for comparing the resistances of the same order of magnitude?
EASY
12th CBSE
IMPORTANT
New Simplified Physics (Vol 1) For Class 12>Chapter 3 - Current Electricity>VERY SHORT ANSWER CONCEPTUAL PROBLEMS>Q 72
What happens if the galvanometer and cell are interchanged at the balance point of the bridge? Would the galvanometer show any current?
EASY
12th CBSE
IMPORTANT
New Simplified Physics (Vol 1) For Class 12>Chapter 3 - Current Electricity>VERY SHORT ANSWER CONCEPTUAL PROBLEMS>Q 73
A household circuit has a fuse of 5 A rating. Calculate the maximum number of bulbs of rating 60 W - 220 V each which can be connected in this household circuit.
EASY
12th CBSE
IMPORTANT
New Simplified Physics (Vol 1) For Class 12>Chapter 3 - Current Electricity>VERY SHORT ANSWER CONCEPTUAL PROBLEMS>Q 74
A constant voltage is applied between the two ends of a uniform metallic wire. Heat Q is developed in it. If another wire, double the radius and twice the length is used, how much heat will be developed in it?
EASY
12th CBSE
IMPORTANT
New Simplified Physics (Vol 1) For Class 12>Chapter 3 - Current Electricity>VERY SHORT ANSWER CONCEPTUAL PROBLEMS>Q 75
Two wires A and B of the same material and having same length, have their cross-sectional areas in the ratio 1:4. What would be the ratio of heat produced in these wires when same voltage is applied across each?