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प्रश्न
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उत्तर
संबंधित प्रश्न
Redraw the circuit of question 1, putting in an ammeter to measure the current through the resistors and a voltmeter to measure the potential difference across the 12 Ω resistors. What would be the readings in the ammeter and the voltmeter?
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.
In the given circuit diagram, which of the given switch(s) should be closed. So that only bulb A glows.
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 ______.
When an electric current flows through a copper wire AB as shown in the following figure, the wire
In an electric circuit a fuse is a ______ ______ to prevent possible fire.
Observe the circuit given:
1. Would any of the bulbs glow when the switch is in the ‘OFF’ position?
2. What will be the order in which the bulbs A, B, and C will glow when the switch is moved to the ‘ON’ position?
In the following arrangement shown in the following figure, the bulb will not glow if the ends A and B are connected with
In which of the following circuits A, B and C given in the following figure, the cell will be used up very rapidly?
