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प्रश्न
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उत्तर
An ammeter is a low resistance device; hence it is connected in series.
A voltmeter is a high resistance device; hence it is connected in parallel.
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संबंधित प्रश्न
Which of the two is connected in series : ammeter or voltmeter?
In 10 s, charge of 25 C leaves a battery, and 200 J of energy are delivered to an outside circuit a result.
What is the p.d. across the battery?
(a) With the help of a circuit diagram, obtain the relation for the equivalent resistance of two resistances connected in parallel.
(b) In the circuit diagram shown below, find:
(i) Total resistance.
(ii) Current shown by the ammeter A

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Tick(✓) the correct choice in the following:
The outer casing of an electric iron is generally connected to earth in order
to
An electric kettle has a heating element which is rated at 2 kW when connected to a 250 V electric supply. Calculate the
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(b) Resistance of the filament,
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(d) Cost of running the kettle for 10 minutes a day for 30 days of the month, at the rate of Rs. 3.00 per unit.
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An electric lamp of resistance 20 Ω and a conductor of resistance 4 0 are connected to a 6 V battery as shown in the circuit. Calculate: 
(a) the total resistance of the circuit,
(b) the current through the circuit,
(c) the potential difference across the (i) electric lamp and (ii) conductor, and
(d) power of the lamp.
In current electricity, a positive charge refers to ______.
