A Level Physics Practice Test 21

Analogue and Digital Signals Quiz Questions PDF - 21

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Physics: Analogue and Digital Signals Quiz PDF Download

MCQ: Voltage signal generated by a microphone is

A) digital in nature

B) analogue in nature

C) consists of bits and bytes

D) hybrid in nature

MCQ: If the connections across the resistor are reversed, then graph between current and potential difference is

A) variable

B) straight lined

C) constant

D) inverted

MCQ: Frequency below which no electrons are emitted from metal surface is

A) minimum frequency

B) angular frequency

C) maximum frequency

D) threshold frequency

MCQ: An uncharged object has

A) more protons

B) more electrons

C) equal electrons and protons

D) no protons and electrons

MCQ: Energy transferred per unit charge is

A) EMF

B) current

C) potential difference

D) conventional current

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