28 Questions
What is the unit of measure for voltage?
Volt (V)
What does 1mV represent?
0.1 V
What does 1J of work represent in terms of charge and potential difference?
1 C of charge through 1 V of potential difference
What is the rate of flow of charge in a conductor called?
Current
By convention, in which direction does the current flow?
From more positive point to more negative point
Why do we connect the voltmeter to points a and b in the circuit diagram?
To measure the voltage across the resistor
What is the measure of the opposition to current flow in an electrical circuit?
Current resistance
What is the unit of measure for resistance?
Ohms (Ω)
What happens to the resultant resistance when resistors are connected in series?
It becomes larger
What is the purpose of a voltage divider in a circuit?
To decrease voltage
What does the power (𝑷) consumed by a circuit depend on?
Both the voltage and the current
What happens to the resultant resistance when resistors are connected in parallel?
It becomes smaller
What is the relation between power (𝑷), voltage (𝑉), and current (𝐼) in a circuit?
$\text{Power} = \text{Voltage} \times \text{Current}$
What does resistance in an electrical circuit measure?
Conductance
What is the formula for calculating power (𝑷) in a circuit?
$\text{Power} = \text{Voltage} \times \text{Current}$
What is the purpose of using a voltage divider in a circuit?
To obtain a specific voltage from a large fixed voltage
What does connecting resistors in series result in?
A larger resistor
What is the formula for calculating total resistance when resistors are connected in parallel?
$R = \frac{1}{R_1 + R_2}$
What is the unit of measure for voltage?
Volt
What is the rate of flow of charge in a conductor called?
Ampere
What does 1mV represent?
1 millivolt
By convention, in which direction does the current flow?
From more positive point to more negative point
What does 1J of work represent in terms of charge and potential difference?
1 C of charge through 1 V potential difference
What is the formula for calculating power (𝑷) in a circuit?
𝑷 = 𝐼𝑉
What does the unit of measure for resistance represent?
Measure of opposition to current flow in an electrical circuit
What is the purpose of using a voltage divider in a circuit?
To get a specific voltage from a larger fixed voltage
What happens to the resultant resistance when resistors are connected in series?
It increases
What does 1J of work represent in terms of charge and potential difference?
1 coulomb and 1 volt
This quiz covers the basic concepts of voltage and current in analogue and digital ICs. It includes questions about simple circuit diagrams, DC voltage sources, resistors, and the measurement units for voltage (volt) and current. Test your understanding of the energy required for moving charges across a resistor.
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