Q14.A galvanometer of resistance G is converted into a voltameter of range 0 −1 V by connecting a resistance R in series with it. The additional resistance that should be connected in series with R1 to increase the range of the voltmeter to 0 −2V will be : (1) G (2) R1 (3) R1 −G (4) R1 + G
What This Question Tests
This question tests the understanding of how to extend the range of a voltmeter by adding series resistance and requires calculating the additional resistance needed.
Concepts Tested
Formulas Used
V = I_g (G + R)
I_g = V_range / (G + R_series)
📚 NCERT Sections This Tests
4.10 — Two Moving Coil Meters, M1 And M2 Have The Following Particulars:
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4.10 Two moving coil meters, M1 and M2 have the following particulars: R1 = 10 Ω, N1 = 30, A1 = 3.6 × 10–3 m2, B1 = 0.25 T R2 = 14 Ω, N2 = 42, A2 = 1.8 × 10–3 m2, B2 = 0.50 T (The spring constants are identical for the two meters). Determine the ratio of (a) current sensitivity and (b) voltage sensitivity of M2 and M1.
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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?
📋 Question Details
- Chapter
- Current Electricity
- Topic
- Galvanometer as Voltmeter
- Year
- 2020
- Shift
- 05 Sep Shift 1
- Q Number
- Q14
- Type
- MCQ
- NCERT Ref
- Class 12 Physics Ch 4: Moving Charges and Magnetism
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