ICSE Class 10 Alternating Current — Mock Test (2027)
Free online mock test for Alternating Current (ICSE Class 10 Physics) — 81 competency-based questions based on the latest CISCE 2027 syllabus, with instant marking. Try the samples below, then take the full test free.
What to expect: This mock test covers key concepts from the Alternating Current chapter — including application-based and competency-focused questions aligned with how ICSE actually sets the paper.
Tip: Attempt without notes first to identify gaps, then review explanations for any wrong answers. Retake after a few days for best retention.
Sample questions
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1.When an ac voltage is applied to a pure resistor, the current through it and the voltage across it are:
- A.In phase with each other
- B.Out of phase by pi/2
- C.Out of phase by pi
- D.Out of phase by pi/4
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2.In a purely inductive ac circuit, the current:
- A.Lags the voltage by pi/2
- B.Leads the voltage by pi/2
- C.Is in phase with the voltage
- D.Lags the voltage by pi
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3.In a series LCR circuit driven by an ac source, the current at any instant is:
- A.The same in each element, with the same amplitude and phase
- B.Different in each element
- C.Largest in the capacitor
- D.Zero in the inductor
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4.An ideal (100% efficient) step-up transformer with 100 primary turns and 200 secondary turns is fed 220 V at 10 A on the primary. The secondary output current is:
- A.20 A
- B.10 A
- C.5.0 A
- D.2.5 A
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5.In a series circuit a resistor of 200 ohm is in series with a capacitor whose reactance is 212 ohm, connected to a 220 V ac source. The impedance of the circuit is approximately:
- A.412 ohm
- B.291 ohm
- C.206 ohm
- D.150 ohm
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