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प्रश्न
उत्तर
संबंधित प्रश्न
Draw circuit symbols for
an open switch
How does the short circuit form? What is its effect?
In an electric circuit, a battery and a bulb have been connected and the battery consists of two cells of equal potential difference. If the bulb is not glowing, then which tests will you perform in order to find out the reason for the bulb not glowing?
Match the column ‘A’ with column ‘B’.
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Column ‘A’
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Column ‘B’ |
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(1) Eka - boron
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(a) Germanium
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(2) Eka - Aluminium
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(b) Scandium
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(3) Eka - Silicon
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(c) Gallium |
If you touch an electric wire carrying current you get a shock, but if on the same wire the birds sit they do not get any shock/current. Explain why?
The unit of electrical power is _______.
______ is the device used to close or open an electric circuit.
Rahul wants to make an electric circuit. He has a bulb, two wires, a safety pin, and a piece of copper. He does not have any electric cell or battery. Suddenly he gets some idea. He uses lemon instead of a battery and makes a circuit. Will the bulb glow?
In which among the following circuits does the bulb glow?
Assertion: People struck by lightning receive a severe electrical shock.
Reason: Lightning carries very high voltage.
The rate of flow of electric charges in a circuit is called ______.
______ is a kind of fish which is able to produce an electric current.
In the following circuits (Figure), heat produced in the resistor or combination of resistors connected to a 12 V battery will be
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| (i) | (ii) | (iii) |
When an electric current flows through a copper wire AB as shown in Figure14.1, the wire
The ______ is a species of fish that can give electric shocks of up to six hundred fifty watts of electricity.
Overloading of electric circuits can lead to short-circuiting.
Name the device which is used to measure the strength of the electric current in an electric circuit.
How is Joule's law effect useful in electric circuits where fuse is used as a safety device?
