WorksheetsCurrent electricity and Household circuits
Total questions: 20
Worksheet time: 17mins
yellow and green blue brown
brown blue yellow and green
yellow and green brown blue
blue brown yellow and green
Its voltage is always 0 V.
It is green in colour.
A fuse is fitted in it.
No current flows through it.
5 A.
10 A.
15 A.
20 A.
What is the power when a voltage of 120 V drives a 2-A current through a device?
120 Watts
360 Watts
240 Watts
A circuit with only one path for the current to flow is a __________________.
parallel circuit
series circuit
mini circuit
device
A light circuit is operating at 75 Volts. What is the circuit's current if the resistance is 5 Ohms?
375 Amps
50 Amps
15 Amps
0.07 Amps
If the voltage across the battery was 10V in this diagram, what would be the voltage across each light bulb?
10V
5V
20V
0V
A circuit with 3 resistors, 10 Ohms, 30 Ohms and 20 Ohms are in series. What is the total resistance
30 Ohms
50 Ohms
60 Ohms
100 Ohms
A current that is able to move in both directions is called:
Alternating current (AC)
Direct current (DC)
Voltage current (VC)
Batteries allow which type of current to flow through them?
Alternating Current (AC)
Direct current (DC)
Voltage current (VC)
Which of the following statements is TRUE regarding a series circuit?
Any break in a series circuit results in no current.
Series circuits must be operated by at least three switches.
The more resistance in a series circuit, the more current will flow.
If a circuit has two resistors in parallel both are 4Ω, what is the total resistance of the circuit?
1Ω
2Ω
4Ω
8Ω
As the length of a wire increases, the resistance of the wire will
increase
decrease
stay the same
As the diameter of a wire increases, the resistance of the wire will
increase
decrease
stay the same
Which is a true statement?
No sources of emf have internal resistance
Some sources of emf have internal resistance
Most sources of emf have internal resistance
All sources of emf have internal resistance
What is emf?
the electro motive "force" or the force on electrons
the electromotive "force" or the Voltage of a cell measured when there is no current flowing
the electromotive "field" or the Voltage of a cell measured when there is no current
the electromotive "force" or Voltage of a cell measured when connected to a circuit
What is internal resistance?
the resistance inside the cell that increases with more current drawn from the cell
the resistance inside the cell that decreases with more current drawn from the cell
the resistance inside the cell that remains constant as the current drawn from the cell changes
the resistance inside each component which increases as more resistances are added in series
Which is the right form of Ohm's Law?
V=I/R
V=R/I
I=V/R
I=R/V
