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Electrical Components Overview

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Questions and Answers

What component in a circuit allows current to flow in only one direction?

Diode (correct)

Light-dependent resistor

Variable resistor

Thermistor

Which component is used to measure the current in a circuit?

Switch

Fixed resistor

Ammeter (correct)

Voltmeter

Which component's resistance decreases as light intensity increases?

Thermistor

Diode

Light-dependent resistor (correct)

Fixed resistor

What is the function of a light-emitting diode (LED) in a circuit?

Emit light when current passes through (A) Signup and view all the answers

Which component limits the flow of current in a circuit?

Variable resistor (B) Signup and view all the answers

What is the function of an energy source in an electric circuit diagram?

Provide potential difference (D) Signup and view all the answers

What is the symbol for potential difference?

V (C) Signup and view all the answers

How is a voltmeter connected when measuring potential difference?

In parallel (D) Signup and view all the answers

What unit is used to measure potential difference?

Volt (B) Signup and view all the answers

In which direction does the current flow in a circuit?

From positive to negative terminal (C) Signup and view all the answers

What is the unit of electric current?

Ampere (A) Signup and view all the answers

How are electrons flowing in a circuit described?

Flow towards the negative terminal of the cell (A) Signup and view all the answers