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प्रश्न
Draw circuit symbols for
a battery of three cells
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उत्तर
a battery of three cells
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संबंधित प्रश्न
Draw a schematic diagram of a circuit consisting of a battery of three cells of 2 V each, a 5 Ω resistor, an 8 Ω resistor, and a 12 Ω resistor, and a plug key, all connected in series.
What is a circuit diagram
Explain with the help of a labelled circuit diagram how you will find the resistance of a combination of three resistors, or resistance R1, R2 and R3, joined in parallel. Also mention how you will connect the ammeter and the voltmeter in the circuit when measuring the current in the circuit and the potential difference across one of the three resistors of the combination.
Distinguish between a closed circuit and an open circuit, with the use of suitable labelled diagrams.
Name the instrument used to control current in an electric circuit.
Explain the following:
Open circuit
Explain the following:
Closed circuit
What is open circuit?
In any electric circuit, when the switch is on and the current flows through it why do the wire, switches, bulb or devices become hot?
Write scientific reason.
It is beneficial to carry electrical energy in AC form as it is carried over long distances.
In the circuit diagram below, 10 units of electric charge move past point x every second What is the current in the circuit ______.
In which of the following circuits are the bulb connected in series?
Study the electric circuit below. Which of the following switches should be closed so that only two bulbs will light up
Assertion: People struck by lightning receive a severe electrical shock.
Reason: Lightning carries very high voltage.
Instead of metal wires, a jute string can be used to make a circuit.
______ 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) |
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.
Boojho has a cell and a single piece of connecting wire. Without cutting the wire in two, will he be able to make the bulb glow? Explain with the help of a circuit diagram.
How is Joule's law effect useful in electric circuits where fuse is used as a safety device?
