Basic Electronics Quiz

What is the unit of electric current?

• Watts

• Amperes

• Ohms

• Volts

What does Ohm's Law state?

• V = I * R

• I = R / V

• I = V * R

• R = V / I

What is the resistance of a circuit if the voltage is 220V and the current is 10A?

• 23Ω

• 21Ω

• 20Ω

• 22Ω

In a series circuit, the total resistance is equal to:

• The sum of individual resistances

• The product of individual resistances

• The average of individual resistances

• The difference of individual resistances

What is the flow of electrical charge called?

• Resistance

• Power

• Voltage

• Current

What instrument is used to measure voltage?

• Ammeter

• Ohmmeter

• Voltmeter

• Galvanometer

What happens to the total current in a parallel circuit?

• It decreases

• It remains the same

• It increases

• It becomes zero

What is the relationship between voltage, current, and resistance according to Ohm's Law?

• V = I - R

• V = I * R

• V = I / R

• V = I + R

What type of circuit allows current to flow through multiple paths?

• Closed circuit

• Series circuit

• Open circuit

• Parallel circuit

What is the term for materials that do not allow electric current to pass through?

• Semiconductors

• Resistors

• Insulators

• Conductors