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Alternating current cannot be measured by D.C. ammeter because:

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Important Questions on Alternating Current

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IMPORTANT
Achieve CUET (UG) Physics Practice Book>Chapter 7 - Alternating Current>Exercise>Q 7
Which is the average value of the A.C. voltage over one complete cycle?
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Achieve CUET (UG) Physics Practice Book>Chapter 7 - Alternating Current>Exercise>Q 8
In an ac circuit, an alternating voltage e=2002 sin 100t volts is connected to a capacitor of capacity 1 μF. The rms value of the current in the circuit is
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CUET (UG)
IMPORTANT
Achieve CUET (UG) Physics Practice Book>Chapter 7 - Alternating Current>Exercise>Q 9
The peak voltage of an ac supply is 440 V, then its RMS voltage is   
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Achieve CUET (UG) Physics Practice Book>Chapter 7 - Alternating Current>Exercise>Q 10
An alternating voltage given by V=140 sin(314 t) is connected across a pure resistor of 50 Ω. The RMS current through the resistor is 
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CUET (UG)
IMPORTANT
Achieve CUET (UG) Physics Practice Book>Chapter 7 - Alternating Current>Exercise>Q 11
The phase difference between emf and current in a pure resistive circuit is 
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CUET (UG)
IMPORTANT
Achieve CUET (UG) Physics Practice Book>Chapter 7 - Alternating Current>Exercise>Q 12
An A.C. source is connected to a resistive circuit. What is true of the following:
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IMPORTANT
Achieve CUET (UG) Physics Practice Book>Chapter 7 - Alternating Current>Exercise>Q 13
The phase relationship between current and voltage in a pure resistive circuit is best represented by
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CUET (UG)
IMPORTANT
Achieve CUET (UG) Physics Practice Book>Chapter 7 - Alternating Current>Exercise>Q 14
In a series RL circuit, the resistance and inductive reactance are the same. Then the phase difference between the voltage and current in the circuit is