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Two resistors of 100 Ω each are connected in series with a 9 V battery. A voltmeter of 400 Ω resistance is connected to measure the voltage drop across one of the resistors. The voltmeter reading is ______ V.

Asked in JEE Main 24th Jan 1st Shift 2026 · Ammeters and voltmeters in circuits

• (1) 4
• (2) 3
• (3) 4.5
• (4) 2

Step-by-step solution

Why the other options are wrong

• (2) No standard slip gives this; it would need a 100 Ω voltmeter.
• (3) Treats the voltmeter as ideal and ignores its loading.
• (4) No standard slip gives this; it would need the parallel pair to be about 29 Ω.

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