10 Questions
What is the resistance of the electric iron when connected to a 250 V supply?
62.5 Ω
What is the current taken by the electric iron when connected to a 220 V supply?
3.52 A
In a series circuit, if the voltage drop across the first resistor is 5 V and the voltage drop across the third resistor is 7 V, what is the total voltage of the circuit?
22 V
What is the value of the first resistor in a series circuit if the current through it is 2 A and the voltage drop across it is 6 V?
4 Ω
If a parallel circuit has three branches, how many current paths are there?
3
What is true about the voltage across each resistance in a parallel combination?
The same for each resistance
In a parallel circuit, what does Ohm's law describe?
Relationship between current and voltage in each branch
If two resistors are connected in parallel and one has twice the resistance of the other, how does their current compare?
Lower for the lower resistance resistor
What happens to the total resistance in a parallel circuit when more resistors are added?
Decreases
What is true about the current paths in a parallel circuit?
The same for all branches
Test your knowledge about electrical power, energy consumption, and electric circuits with this quiz. Questions cover topics such as power calculations, energy measurement, and the fundamentals of electric circuits.
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