MEDIUM
Earn 100

Should the resistance of a voltmeter be low or high? Give reason.

Important Questions on Electricity

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Science>Physics>Electricity>Circuit Diagram

Find the current in the three resistors as shown in the following figure?

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Science>Physics>Electricity>Circuit Diagram

A voltmeter of very high resistance is joined in the circuit as shown in the figure. The voltage shown by the voltmeter will be______.

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Science>Physics>Electricity>Circuit Diagram
What is the S.l unit of potential difference?
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Science>Physics>Electricity>Circuit Diagram
What do you understand by the term electric energy?
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Science>Physics>Electricity>Circuit Diagram

Select the correct statement in the following and choose the correct option

  1.  An Ammeter is connected in series in a circuit and a Voltmeter is connected in parallel.
  2.  An Ammeter has a high resistance.
  3.  A Voltmeter has a low resistance. 
EASY
Science>Physics>Electricity>Circuit Diagram

In the circuit shown all the measuring instruments are ideal. The reading in ammeter A2 will be:

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EASY
Science>Physics>Electricity>Circuit Diagram
What is the S.l unit of potential difference?
HARD
Science>Physics>Electricity>Circuit Diagram
The dimension of electrical potential difference is 
MEDIUM
Science>Physics>Electricity>Circuit Diagram
The device used for measuring electric current in a circuit is called
EASY
Science>Physics>Electricity>Circuit Diagram
A science teacher asked a student to measure potential difference across the ends of a dry cell. The device needs to be used by the student is :
EASY
Science>Physics>Electricity>Circuit Diagram
In an electric circuit, the voltmeter is used :
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Science>Physics>Electricity>Circuit Diagram
A cell, a resistor, a key and ammeter are arranged as shown in the circuit diagrams of (Figure). The current recorded in the ammeter will be :

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EASY
Science>Physics>Electricity>Circuit Diagram
Which device is used to measure the potential difference?
EASY
Science>Physics>Electricity>Circuit Diagram
How is a voltmeter connected in the circuit to measure the potential difference between two points? 
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Science>Physics>Electricity>Circuit Diagram
Name the instruments used to measure electric current and potential difference respectively. Which of these is connected in series and which is connected in parallel in a circuit?
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Science>Physics>Electricity>Circuit Diagram
Should the resistance of an ammeter be low or high? Give reason.
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Science>Physics>Electricity>Circuit Diagram
What happens when an ammeter is connected in parallel?
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Science>Physics>Electricity>Circuit Diagram
A voltmeter is used to measure
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Science>Physics>Electricity>Circuit Diagram

Name the instrument which is used to measure electric current.

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Science>Physics>Electricity>Circuit Diagram
How are ammeters and voltmeters connected in a circuit? What do they help us measure?