EASY
10th CBSE
IMPORTANT
Earn 100

A voltmeter has a least count of 0.05 volt. While doing Ohm's law experiment, a student observed that the pointer of the voltmeter coincides with 15th divisions. What is the value of observed reading?

Important Questions on Electricity

EASY
10th CBSE
IMPORTANT
What will happen to current passing through a conductor if potential difference across it is doubled and the resistance is halved?
EASY
10th CBSE
IMPORTANT

See carefully the circuit arrangement, shown below and answer the following questions.

(a) What is wrong with the given circuit?

(b) What you observe about the reading in the ammeter and the voltmeter?

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EASY
10th CBSE
IMPORTANT

In the experiment on finding the equivalent resistance of two resistors connected in series, three students connected the ammeter in their circuits in the three ways X, Y and Z as shown here:

XQuestion Image     YQuestion Image    ZQuestion Image

 Assuming their ammeters to be ideal, which of the students has not been correctly connected the ammeter?

EASY
10th CBSE
IMPORTANT

In an experiment to determine the equivalent resistance of two resistors R1 and R2 in series. Which one of the following circuit diagrams show the correct way of connecting the voltmeter in the circuit?

I   Question Image        II Question Image  

IIIQuestion Image       IVQuestion Image    

EASY
10th CBSE
IMPORTANT

For the circuit shown below, what will be reading of the voltmeter?

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EASY
10th CBSE
IMPORTANT

A student sets up her circuit, for finding the equivalent resistance of two resistors R1 and R2 in series, in the manner as shown. She did not obtain the correct result in her experiment because of a mistake in her circuit. What mistake did she commit and what should do to correct this mistake? 

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EASY
10th CBSE
IMPORTANT

The given circuit diagram shows the experimental arrangement of different circuit components for determination of equivalent resistance of two resistors connected in series. Name the components X, Y and Z shown in the circuit.

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MEDIUM
10th CBSE
IMPORTANT

For carrying out the experiment, on finding the equivalent resistance of two resistors connected in series, a student sets up the circuit as shown. On further verification, he finds out that the circuit has one or more faults. Mention the fault.

(i) The resistors R1 and R2 have not been correctly connected in series.

(iI) The voltmeter has not been correctly connected in the circuit. 

(iii) The ammeter has not been correctly connected in the circuit.

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