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प्रश्न
If the current through a floodlamp is 5 A, what charge passed in 10 seconds?
(a) 0.5 C
(b) 2 C
(c) 5 C
(d) 50 C
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उत्तर
50 C
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संबंधित प्रश्न
Which of the following units could be used to measure electric charge?
(a) ampere
(b) joule
(c) volt
(d) coulomb
Which instrument is used to measure electric current? How should it be connected in a circuit?
V1, V2 and V3 are the p.ds. across the 1Ω, 2Ω and 3Ω resistors in the following diagram, and the current is 5 A.
Which one of the columns (a) to (d) shows the correct values of V1, V2 and V3measured in volts?
`V_1` `V_2` `V_3`
(a) 1.0 2.0 3.0
(b) 5.0 10.0 15.0
(c) 5.0 2.5 1.6
(d) 4.0 4.0 2.0
You can given one hundred 1 Ω resistors. What is the smallest and largest resistance you can make in a circuit using these?
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Distinguish between an open and a closed circuit.
Tell the odd one out. Give a proper explanation.
What is international convention of colour coding in a cable?
In the circuit shown in fig. 6, find the reading of the ammeter A when the switch S is
(a) Opened.
(b) Closed.
State whether the following statement is True or False:
The SI unit of charge is the coulomb.
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True or False – If False give the correct answer
The representation of the electric current is A
State whether true or false. If false, correct the statement.
Current can produce magnetic field.
Kilowatt hour is the unit of
The power of an electric device is a product of ______ and ______.
Unit of electric power may also be expressed as
Problems for practice:
If 3A current flows through a circuit, then convert the current in terms of a milliampere.
Assertion (A): Electric current will not flow between two charged bodies when connected if their charges are the same.
Reason (R): Current is the rate of flow of charge.
