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Questions and Answers
What is the resistance of the electric iron when connected to a 250 V supply?
What is the resistance of the electric iron when connected to a 250 V supply?
- 220 Ω
- 62.5 Ω (correct)
- 48 Ω
- 100 Ω
What is the current taken by the electric iron when connected to a 220 V supply?
What is the current taken by the electric iron when connected to a 220 V supply?
- 5.33 A
- 4.18 A
- 3.52 A (correct)
- 2.91 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?
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 (correct)
- 24 V
- 12 V
- 19 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?
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?
If a parallel circuit has three branches, how many current paths are there?
If a parallel circuit has three branches, how many current paths are there?
What is true about the voltage across each resistance in a parallel combination?
What is true about the voltage across each resistance in a parallel combination?
In a parallel circuit, what does Ohm's law describe?
In a parallel circuit, what does Ohm's law describe?
If two resistors are connected in parallel and one has twice the resistance of the other, how does their current compare?
If two resistors are connected in parallel and one has twice the resistance of the other, how does their current compare?
What happens to the total resistance in a parallel circuit when more resistors are added?
What happens to the total resistance in a parallel circuit when more resistors are added?
What is true about the current paths in a parallel circuit?
What is true about the current paths in a parallel circuit?
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