Which one of the following statements is NOT correct?
A.An ammeter is always connected in series in the circuit to measure the current
B.A Voltmeter is always connected to parallel in a circuit to measure the voltage
C.A voltmeter has a high resistance and an ammeter has a low resistance
D.A voltmeter has a low resistance and an ammeter has a high resistance✓ Correct
Explanation
An ammeter measures current and must be connected in series so that the same current flows through it; it must have low resistance to avoid affecting the circuit. A voltmeter measures potential difference and must be connected in parallel; it must have high resistance to draw minimal current. Therefore, statements (a), (b), and (c) are correct. Statement (d) is incorrect because it reverses the resistance characteristics—the voltmeter has high resistance, not low, and the ammeter has low resistance, not high.
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