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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
<p> Define the unit of electric current (or Define ampere).
Write down the formula which relates electric charge, time and electric current
In 10 s, a charge of 25 C leaves a battery, and 200 J of energy are delivered to an outside circuit as a result.
- What is the p.d. across the battery?
- What current flows from the battery?
The p.d. across a 3 Ω resistor is 6 V. The current flowing in the resistor will be:
(a) `1/2A`
(b) 1 A
(c) 2 A
(d) 6 A
In the circuit shown below, the voltmeter reads 10 V.
(a) What is the combined resistance?
(b) What current flows?
(c) What is the p.d. across 2 Ω resistor?
(d) What is the p.d. across 3 Ω resistor?
Name two effects produced by electric current.
Explain, why the potential difference across the terminals of a cell is more when the cell is not in use than it is when the cell is being used.
What determines the direction of flow of electrons between two charged conductors kept in contact?
Conventionally, the direction of the current is taken as:
