EASY
10th CBSE
IMPORTANT
Earn 100

A parallel combination of 50 resistor of R Ω each is connected in series with a battery. If the current drawn from the battery is 2.1 A the current through each resistor will be .

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Important Questions on Electricity

EASY
10th CBSE
IMPORTANT
The equivalent resistance of two resistors of 4 Ω each connected in parallel is 8 Ω.
EASY
10th CBSE
IMPORTANT
To secure minimum equivalent resistance using ten resistors, all the resistors should be connected in parallel.
EASY
10th CBSE
IMPORTANT
To secure maximum equivalent resistance using hundred resistors, all the resistors should be connected in parallel.
EASY
10th CBSE
IMPORTANT
A parallel combination of three resistors will draw more current from the battery than their series combination.
EASY
10th CBSE
IMPORTANT
In a circuit, the potential difference across each resistance in a series combination of a number of resistances is the same as the potential difference across each resistance when the same resistances are connected in parallel.
MEDIUM
10th CBSE
IMPORTANT
The equivalent resistance of two resistances, R1 and R2 in parallel is given by undefined. The equivalent resistance of the same two resistances in series is given by undefined.
Consider the given figure. A resistor of undefined is connected to a battery of undefined. An ammeter is connected to measure the current through the resistor and a voltmeter is connected to measure the potential difference across the same resistor. Though ideally, a voltmeter has infinite resistance and an ammeter has zero resistance, they both have finite non-zero resistances in practical situations. The voltmeter and the ammeter in the given situation have resistances of 100 Ω and 1 Ω respectively.
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On the basis of the above information, answer the following question: What will be the current drawn from the battery when no voltmeter and ammeter are connected?
MEDIUM
10th CBSE
IMPORTANT
The equivalent resistance of two resistances, R1 and R2 in parallel is given by undefined. The equivalent resistance of the same two resistances in series is given by undefined.
Consider the given figure. A resistor of undefined is connected to a battery of undefined. An ammeter is connected to measure the current through the resistor and a voltmeter is connected to measure the potential difference across the same resistor. Though ideally, a voltmeter has infinite resistance and an ammeter has zero resistance, they both have finite non-zero resistances in practical situations. The voltmeter and the ammeter in the given situation have resistances of 100 Ω and 1 Ω respectively.
Question Image
On the basis of the above information, answer the following question: What will be the total resistance of the circuit when the voltmeter and the ammeter are connected?
MEDIUM
10th CBSE
IMPORTANT

The equivalent resistance of two resistances, R1 and R2 in parallel is given by undefined. The equivalent resistance of the same two resistances in series is given by undefined.
Consider the given figure. A resistor of undefined is connected to a battery of undefined. An ammeter is connected to measure the current through the resistor and a voltmeter is connected to measure the potential difference across the same resistor. Though ideally, a voltmeter has infinite resistance and an ammeter has zero resistance, they both have finite non-zero resistances in practical situations. The voltmeter and the ammeter in the given situation have resistances of 100 Ω and 1 Ω respectively.

Question Image  

On the basis of the above information, answer the following question: What will be the current drawn from the battery when the voltmeter and the ammeter are connected?