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प्रश्न
The device used for measuring potential difference is
विकल्प
Potentiometer
Ammeter
Galvanometer
Voltmeter
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उत्तर
Voltmeter
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संबंधित प्रश्न
How much energy is given to each coulomb of charge passing through a 6 V battery?
The device used for measuring potential difference is known as:
Define the unit of resistance (or Define the unit "ohm").
What p.d. is needed to send a current of 6 A through an electrical appliance having a resistance of 40 Ω?
The figure shows a circuit. When the circuit is switched on, the ammeter reads 0.5 A.
(i) Calculate the value of the unknown resistor R.
(ii) Calculate the charge passing through the 3 Ω resistor in 120 s.
(iii) Calculate the power dissipated in the 3 Ω resistor.
Two bulbs are marked 100 W, 220 V and 60 W, 110 V. Calculate the ratio of their resistances.
Which of the following represents voltage?
Assertion (A): Charges flow from higher potential to lower potential.
Reason (R): Current flows mainly due to the flow of electrons.
Study the following circuit and find:
- Effective resistance of the circuit
- Current drawn from the battery
- Potential difference across the 5 omega resistor
What does the positive and negative sign of potential convey?
