EASY
10th Chhattisgarh Board
IMPORTANT
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Write the definition for the unit of measurement of electric current.

Important Questions on Electric Current and Circuit

MEDIUM
10th Chhattisgarh Board
IMPORTANT
Can you tell whether a current is flowing in an electric wire by observing it? If not, how will you test the flow of current?
EASY
10th Chhattisgarh Board
IMPORTANT
Why should we use items made of wood or rubber to detach a live wire from an electrocuted person?
HARD
10th Chhattisgarh Board
IMPORTANT

The values of potential difference and current in three resistors PQ and R are shown in the graph. Find out the resistances of the resistors and establish the ratio between them, i.e., P:R:Q.

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EASY
10th Chhattisgarh Board
IMPORTANT
If two wires made of the same material, one thick and the other thin, are connected to an equivalent source of current, then, in which wire would the current flow more freely and why?
MEDIUM
10th Chhattisgarh Board
IMPORTANT
The value of two resistors in a series is in the ratio of 1:4, and a 10 ampere current flows in the circuit. If these two resistors are combined in a parallel circuit, then calculate the ratio of the current flowing through the resistors.
EASY
10th Chhattisgarh Board
IMPORTANT
Which one of the options given below is a good conductor of electricity?
EASY
10th Chhattisgarh Board
IMPORTANT
The instrument used to measure current in a circuit is -
EASY
10th Chhattisgarh Board
IMPORTANT
The relation between V and I for a conducting wire is -