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प्रश्न
The following figure shows the symbols for components used in the accompanying electrical circuit. Place them at proper places and complete the circuit.
Which law can you prove with the help of above circuit?
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उत्तर
Electrical circuit showing the connection of various components
The above circuit can be proved by Ohm's law.
Ohm’s law The relationship between the current flowing through a wire (I) and the potential difference across its ends (V) can be obtained from the law that was given by the German scientist George Simon Ohm.
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संबंधित प्रश्न
What do the following symbols mean in circuit diagrams?
Draw circuit symbols for
A closed switch
Tell the odd one out. Give a proper explanation.
Observe the following figure which bulb get fuse?
Distinguish between a closed circuit and an open circuit, with the use of suitable labelled diagrams.
Write the condition required for a circuit to be a closed circuit.
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
|
|
(3) Eka - Silicon
|
(c) Gallium |
Explain the following:
Closed circuit
In the given circuit diagram, which of the given switch(s) should be closed. So that only bulb A glows.
In the circuit shown, which switches (L,M or N) must be closed to light up the bulb?
_____ has a thin metallic filament that melts and breaks the connection when the circuit is overheated.
A device that is used to break an electric circuit is called ______.
Instead of metal wires, a jute string can be used to make a circuit.
The rate of flow of electric charges in a circuit is called ______.
In the following circuits (Figure), heat produced in the resistor or combination of resistors connected to a 12 V battery will be
 |
 |
 |
| (i) | (ii) | (iii) |
A child has drawn the electric circuit to study Ohm’s law as shown in Figure. His teacher told that the circuit diagram needs correction. Study the circuit diagram and redraw it after making all corrections.
Draw a circuit diagram of an electric circuit containing a cell, a key, an ammeter, a resistor of 2 Ω in series with a combination of two resistors (4 Ω each) in parallel and a voltmeter across the parallel combination. Will the potential difference across the 2 Ω resistor be the same as that across the parallel combination of 4 Ω resistors? Give reason.
In an electric circuit, the current starts from ______.
An electric motor rated 1100 W is connected to 220 V mains. Find:
- The current drawn from the mains,
- Electric energy consumed if the motor is used for 5 hours daily for 6 days.
- Total cost of energy consumed if the rate of one unit is 5.
