Principles of Electronics

What is Ohm's Law?

According to Kirchhoff's Voltage Law, the sum of the electrical potential differences (voltage) around any closed network is equal to:

• The sum of the current entering the network

• Zero

• The total resistance in the loop

• The total current in the loop

In a series circuit, if the total resistance is 15 ohms and one of the resistors is 5 ohms, what is the resistance of the other resistor?

• 5 ohms

• 10 ohms

• 15 ohms

• 20 ohms

Which component is used to amplify an electrical signal?

• Resistor

• Capacitor

• Inductor

• Transistor

What is the unit of capacitance?

• Ohm

• Farad

• Henry

• Watt

According to Kirchhoff's Current Law, the sum of all currents entering a junction is equal to:

• The sum of all voltages around the junction

• The sum of all resistances in the junction

• The sum of all currents leaving the junction

• Zero

What is the total resistance of two 4 ohm resistors connected in parallel?

• 2 ohms

• 4 ohms

• 8 ohms

• 16 ohms

What is the formula for calculating power, according to Watt's Law?

• All of the above