Advertisements
Advertisements
Question
The device used for measuring potential difference is
Options
Potentiometer
Ammeter
Galvanometer
Voltmeter
Advertisements
Solution
Voltmeter
APPEARS IN
RELATED QUESTIONS
You have three resistors of values 2Ω, 3Ω and 5Ω. How will you join them so that the total resistance is more than 7Ω?
1) Draw a diagram for the arrangement
2) Calculate the equivalent resistance.
How much energy is transferred by a 12 V Power supply to each coulomb of charge which it moves around a circuit?
The p.d. across a lamp is 12 V. How many joules of electrical energy are changed into heat and light when:
a charge of 1 C passes through it?
The p.d. across a lamp is 12 V. How many joules of electrical energy are changed into heat and light when: a current of 2 A flows through it for 10 s?
Write down the formula which states the relation between potential difference, current, and resistance.
The V-I graph for a series combination and for a parallel combination of two resistors is shown in Fig – 8.38. Which of the two, A or B, represents the parallel combination? Give a reason for your answer.
Electric cells having 2V potential difference each have been connected in the form of a battery. What will be the total potential difference of the battery in both cases?
Twenty-seven drops of same size are charged at 220 V each. They combine to form a bigger drop. Calculate the potential of the bigger drop.
