Which of the following work (s) on the principle of wheatstone Bridge?
Correct answer: D. All of these
- A. Slide-wire bridge
- B. Meter bridge
- C. Post office box
- D. All of these
- E. None of these
Explanation
The correct answer is 'All of these'. Each option - slide-wire bridge, meter bridge, and post office box - utilizes the Wheatstone Bridge principle. This principle involves balancing the ratios of resistances to find unknown values, which is a common feature in all these devices. The 'None of these' option is incorrect because it contradicts the shared underlying principle of these devices.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Current Electricity
Steady current relates charge flow to potential difference, resistance and resistivity, including how temperature changes a conductor's resistance. Sources with internal resistance have terminal voltage below their emf when delivering current, and maximum power output occurs under a specific load condition rather than at zero resistance.
Practise Current Electricity
1,052 free Current Electricity MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Physics questions like this
Physics is on 16 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Current Electricity questions
A current of 4.4 amperes is flowing in a wire. How many electrons pass a given point in the wire in one second, if the charge on an electron is 1.6 x 10^-19 Coulomb?
A copper wire has resistances 10 ohms and 20 ohms at temperature 0 C and 10 C respectively. What is the temperature coefficient of the copper wire?
A battery has an e.m.f. of 4 V and internal resistance 'r'. When this battery is connected to a resistance of 2 ohms, a current of 1 amp flows in the circuit. How much current will flow if the terminals of the battery are connected directly:-
The instrument(s) which work on the principle of Wheatstone bridge is/are:
An ammeter reads up to 1 A. Its internal resistance is 0.81 Ω. To increase the range to 10 A, the value of the required shunt is:
A 100 watt bulb is operated by 240 volts, the current through the bulb will be: