Chapter 3 – Current Electricity
Shown in the figure below is a meter-bridge set up with null deflection in the galvanometer. The value of the unknown resistor R is
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Dec
Shown in the figure below is a meter-bridge set up with null deflection in the galvanometer. The value of the unknown resistor R is Shown in the figure below is a meter-bridge set up with null deflection in the galvanometer. The value of the unknown resistor R is December 1, 2020 Category: Cengage NEET by [...]
In a Wheatstone bridge, three resistances P, Q and R are connected in the three arms and the fourth arm is formed by two resistances S1 and S2 connected in parallel. The condition for the bridge to be balanced will be
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Dec
In a Wheatstone bridge, three resistances P, Q and R are connected in the three arms and the fourth arm is formed by two resistances S1 and S2 connected in parallel. The condition for the bridge to be balanced will be In a Wheatstone bridge Q and R are connected in the three arms [...]
Three resistance P,Q,R each of 2Ω and an unknown resistance S from the four arms of a Wheatstone’s bridge circuit. When a resistance of 6Ω is connected in parallel to S the bridge gets balanced. What is the value of S ?
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Dec
Three resistance P,Q,R each of 2Ω and an unknown resistance S from the four arms of a Wheatstone’s bridge circuit. When a resistance of 6Ω is connected in parallel to S the bridge gets balanced. What is the value of S ? -q R each of 2Ω and an unknown resistance S from the four [...]
Two batteries, one of emf 18V and internal resistance 2Ω and the other of emf 12 and internal resistance 1Ω , are connected as shown. The voltmeter V will record a reading of
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Dec
Two batteries, one of emf 18V and internal resistance 2Ω and the other of emf 12 and internal resistance 1Ω , are connected as shown. The voltmeter V will record a reading of are connected as shown.The voltmeter V will record a reading of one of emf 18V and internal resistance 2Ω and the other [...]
The reading of the ammeter as per figure shown is
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Dec
The reading of the ammeter as per figure shown is The reading of the ammeter as per figure shown is December 1, 2020 Category: Cengage NEET by C.P Singh , Chapter 3 - Current Electricity , Part 2 ,
In the circuit shown P ≠ R, the reading of galvanometer is same with switch S open or closed. Then
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Dec
In the circuit shown P ≠ R, the reading of galvanometer is same with switch S open or closed. Then In the circuit shown P ≠ R the reading of galvanometer is same with switch S open or closed. Then December 1, 2020 Category: Cengage NEET by C.P Singh , Chapter 3 - Current Electricity [...]
In the adjoining circuit, the e.m.f. of the cell is 2 volt and the internal resistance is negligible. The resistance of the voltmeter is 80 ohm. The reading of the voltmeter will be
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Dec
In the adjoining circuit, the e.m.f. of the cell is 2 volt and the internal resistance is negligible. The resistance of the voltmeter is 80 ohm. The reading of the voltmeter will be In the adjoining circuit the e.m.f. of the cell is 2 volt and the internal resistance is negligible. The resistance of the [...]
A potential difference of 220 V is maintained across a 12000 ohm rheostat, as shown in the figure. The voltmeter has a resistance of 6000 ohm and point c is at one-fourth of the distance from a to b. Therefore, the reading of the voltmeter is
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Dec
A potential difference of 220 V is maintained across a 12000 ohm rheostat, as shown in the figure. The voltmeter has a resistance of 6000 ohm and point c is at one-fourth of the distance from a to b. Therefore, the reading of the voltmeter is A potential difference of 220 V is maintained across [...]
The voltmeter reads 40V across 60Ω resistance. The resistance of voltmeter is.
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Dec
The voltmeter reads 40V across 60Ω resistance. The resistance of voltmeter is. The voltmeter reads 40V across 60Ω resistance. The resistance of voltmeter is. December 1, 2020 Category: Cengage NEET by C.P Singh , Chapter 3 - Current Electricity , Part 2 ,
An ammeter and a voltmeter are connected in series to a battery with an emf 6.0 V. Now a resistance is connected in parallel to voltmeter, the reading of ammeter is doubled, while that of voltmeter is reduced to half. The reading of voltmeter after connecting the resistance is
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Dec
An ammeter and a voltmeter are connected in series to a battery with an emf 6.0 V. Now a resistance is connected in parallel to voltmeter, the reading of ammeter is doubled, while that of voltmeter is reduced to half. The reading of voltmeter after connecting the resistance is An ammeter and a voltmeter are [...]