Physics-
General
Easy
Question
The ratio of resistances between A and B before and after the switch ‘ s ‘ is closed is....
- 7 : 8
- 2 : 3
- 9 : 8
- 6 : 3
The correct answer is: 9 : 8
Related Questions to study
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You are given a wire of length 100 cm and linear resistance of 1 ohm/cm If it is cut into two parts, so that when they are in parallel the effective resistance is 24 ohm The lengths of the two parts are.....
You are given a wire of length 100 cm and linear resistance of 1 ohm/cm If it is cut into two parts, so that when they are in parallel the effective resistance is 24 ohm The lengths of the two parts are.....
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Six equal resistances are connected between points P,Q and R as shown Net resistance will be maximum between points __
Six equal resistances are connected between points P,Q and R as shown Net resistance will be maximum between points __
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The resistance between A and B is....
The resistance between A and B is....
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Equivalent resistance between A and B is...
Equivalent resistance between A and B is...
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Effective resistance between A and B is .....when each resistance is 4 W
Effective resistance between A and B is .....when each resistance is 4 W
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Equivalent resistance between A and B is ....
Equivalent resistance between A and B is ....
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Effective resistance between A and B is ...
Effective resistance between A and B is ...
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The effective resistance between A and B is...
The effective resistance between A and B is...
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The effective resistance between A and B is ....
The effective resistance between A and B is ....
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The effective resistance between A and B is ....
The effective resistance between A and B is ....
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The effective resistance of three conductors in series is 10 
.One wire that breaks the effective resistance is 8 .The resistance of the wire that is broken is...
The effective resistance of three conductors in series is 10 .One wire that breaks the effective resistance is 8 .The resistance of the wire that is broken is...
physics-General
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n identical resistors are first connected in series and then in parallel The ratio of their effective resistance in both the cases is ___
n identical resistors are first connected in series and then in parallel The ratio of their effective resistance in both the cases is ___
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If the resistance of a circuit having 12 V source is increased by 4 , the current drops by 0.5 A What is the original resistance of the coil?
If the resistance of a circuit having 12 V source is increased by 4 , the current drops by 0.5 A What is the original resistance of the coil?
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The specific resistance of the material of a wire is r and its volume is 3 m3 and its resistance is 3 The length of the wire will be ....
The specific resistance of the material of a wire is r and its volume is 3 m3 and its resistance is 3 The length of the wire will be ....
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A wire of resistance 20 is stretched so that its radius decreases by 10 % Then its resistance ......
A wire of resistance 20 is stretched so that its radius decreases by 10 % Then its resistance ......
physics-General
