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What is immaterial for an electric fuse wire?

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Important Questions on Current Electricity

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JEE Advanced
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Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 2 - Current Electricity>Objective Problems [ Level 1 ]>Q 180
The heat generated through 2 Ω and 8 Ω resistances separately, when a condenser of 200 μF capacity charged to 200 V is discharged one by one, will be
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JEE Advanced
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Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 2 - Current Electricity>Objective Problems [ Level 1 ]>Q 181
Electric resistance is defined as the ratio of voltage to current. Its dimensional formulae is given by
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JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 2 - Current Electricity>Objective Problems [ Level 1 ]>Q 182
Identify the material commonly used for making coil of a resistance box:
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JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 2 - Current Electricity>Objective Problems [ Level 1 ]>Q 183
Which has not the same unit as others?
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IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 2 - Current Electricity>Objective Problems [ Level 1 ]>Q 184
The charge flowing in a conductor varies with time as Q=at-bt2, then the current
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JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 2 - Current Electricity>Objective Problems [ Level 1 ]>Q 185
A composite resistance of 50 Ω which can carry a current of 4 A is to be made from resistances each of resistance 100 Ω which can carry a current of 1 A. The minimum number of resistances to be used is
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JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 2 - Current Electricity>Objective Problems [ Level 1 ]>Q 186
A source of emf, E=15 V and having negligible internal resistance is connected to a variable resistance, so that the current in the circuit increases with time as i=1.2t+3 A. Then, the total charge that will flow in first five second will be
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JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 2 - Current Electricity>Objective Problems [ Level 1 ]>Q 187
A wire of length 100 cm is connected to a cell of emf 2 V and negligible internal resistance. The resistance of the wire is 3 Ω. The additional resistance required to produce a potential drop of 1 millivolt per cm is