As the voltage across a resistor is increased, what happens to the resistance of the resistor?
It decreases
It remains constant
It increases
What is the current in this circuit?
\[6 A\]
\[2 A\]
\[0.5 A\]
What is the resistance of the resistor in this circuit?
\[20 Ω\]
\[1.8 Ω\]
\[0.05 Ω\]
If the resistance in this circuit is halved, what will the current be?
\[0.3 A\]
\[0.6 A\]
\[0.15 A\]
The diagram shows part of a circuit. What is the resistance of the resistor shown?
\[9 Ω\]
\[4 Ω\]
\[0.25 Ω\]
The diagram shows part of a circuit. What is the reading shown on the ammeter?
\[3.3 A\]
\[21 A\]
The diagram shows part of a circuit. What is the reading displayed on the voltmeter?
\[60 V\]
\[17.7 V\]
\[5.4 V\]
What kind of a circuit is this?
Series
Parallel
Neither
What is the total resistance of this circuit?
\[500Ω\]
\[1000Ω\]
\[1500Ω\]
If the supply voltage is \(12V\), what is the current in this circuit?
\[0.005A\]
\[0.008A\]
\[0.012A\]
\[167Ω\]
If the current in each branch is \(20mA\), what is the supply voltage in this circuit?
\[3.3V\]
\[10V\]
\[30V\]
What is the resistance between \(X\) and \(Y\)?
\[ 62\cdot5\,\Omega \]
\[ 48\cdot62\,\Omega \]
\[ 16\cdot6\,\Omega \]