Q25.Two resistors are connected in series across a battery as shown in figure. If a voltmeter of resistance 2000 Ω is used to measure the potential difference across 500 Ω resister, the reading of the voltmeter will be _____ V
What This Question Tests
This problem tests the understanding of how a voltmeter (with finite resistance) affects the circuit when connected in parallel, requiring calculation of equivalent resistance and then voltage division.
Concepts Tested
Formulas Used
V = IR
R_eq = R₁ + R₂
1/R_p = 1/R₁ + 1/R₂
📚 NCERT Sections This Tests
3.2 — A Battery Of Emf 10 V And Internal Resistance 3 Ω Is Connected To A
Physics Class 11 · Chapter 3
3.2 A battery of emf 10 V and internal resistance 3 Ω is connected to a resistor. If the current in the circuit is 0.5 A, what is the resistance of the resistor? What is the terminal voltage of the battery when the circuit is closed?
3.1 — The Storage Battery Of A Car Has An Emf Of 12 V. If The Internal
Physics Class 11 · Chapter 3
3.1 The storage battery of a car has an emf of 12 V. If the internal resistance of the battery is 0.4 Ω, what is the maximum current that can be drawn from the battery?
2.6 — Three Capacitors Each Of Capacitance 9 Pf Are Connected In Series.
Physics Class 11 · Chapter 2
2.6 Three capacitors each of capacitance 9 pF are connected in series. (a) What is the total capacitance of the combination? (b) What is the potential difference across each capacitor if the combination is connected to a 120 V supply?
📋 Question Details
- Chapter
- Current Electricity
- Topic
- Voltmeter measurement
- Year
- 2022
- Shift
- 29 Jun Shift 2
- Q Number
- Q25
- Type
- Numerical
- NCERT Ref
- Class 12 Physics Ch 3: Current Electricity
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