Current and Voltage

Question 1

Define current

Answer 1

The flow of electrons in an electrical circuit, measured in amps

Question 2

State the direction of current flow

Answer 2

From the positive to negative terminal

Question 3

Define voltage

Answer 3

voltage as the potential for electrical charge to flow, measured in Volts

Question 4

Do circuits need to be closed for current to flow

Answer 4

Yes

Question 5

Why is an amp metre connected in series

Answer 5

Because there will be higher flow of current through the ammeter, it would cause a short circuit.

Question 6

Does the current stay the same throughout a series circuit

Answer 6

Yes

Question 7

Why is a volt metre connected in parallel

Answer 7

so that it does not draw any current itself (due to high resistance) and does not affect net resistance of the circuit.

Question 8

Describe the current in a series circuit

Answer 8

The current remains the same throughout all components

Question 9

Describe the current in a parallel circuit

Answer 9

The sum of the currents through each path is equal to the total current that flows from the source and is split across the components.

Question 10

Describe voltage in a series circuit

Answer 10

The sum of the voltages across components in series is equal to the voltage of the supply.

Question 11

Describe voltage in a parallel circuit

Answer 11

Voltage is the same across each component of the parallel circuit