What is the current drawn by a 4kW electric shower that operates from 180V?
22.22 A
What is the voltage at point C?
10 V
Calculate the current in a circuit if the voltage supplied is 15V and the resistance is 3kΩ.
5 mA
What is the current through the string?
2 mA
If the element of a 3.5 kW electric kettle has a resistance of 15 Ω, how much current will the kettle draw?
15.26 A
What is the voltage at point A?
2 V
What is the current through the string?
50 mA
Calculate the resistance in a circuit if the supply voltage is 20V and the current is 10mA.
2 kΩ
What would you use an ohmmeter to measure in a circuit?
Resistance of a resistor
What would you use an ammeter to measure in circuit?
Current
Given the following chart, determine the maximum value a resistor with colour code red-orange-brown-silver will have.
253 Ω
Given the following chart, determine the minimum value a resistor with colour code brown-black-red-gold will have.
950 Ω
How much power is consumed in a circuit having a 20Ω resistor and connected to a 5V supply?
1.25 W