The electrical potential difference. Voltage is the potential difference causing current to flow.

The electrical potential difference.

Blog | Voltage Lab

Q: What is the unit of electric current?

Ampere (A) Electric current is the flow of electric charge, measured in Amperes.

Q: What is the unit of electrical resistance?

Ohm (?) Resistance opposes the flow of current, measured in Ohms.

Q: What is the relationship between voltage, current, and resistance (Ohm's Law)?

V = I * R Ohm's Law states Voltage (V) equals Current (I) times Resistance (R).

Q: Which of the following is a good conductor of electricity?

Copper Copper has low resistance and easily allows current to flow.

Q: What type of circuit allows current to flow through only one path?

Series circuit In a series circuit, components are connected end-to-end, forming a single path.

Q: What is the unit of electrical power?

Watt (W) Power is the rate at which electrical energy is transferred, measured in Watts.

Q: What is the formula for calculating power (P) using voltage (V) and current (I)?

P = V * I Power is calculated as the product of voltage and current.

Q: What happens in an open circuit?

Current does not flow. An open circuit has a break, preventing current from flowing.

Q: What is a short circuit?

A circuit with no resistance. A short circuit offers very low resistance, potentially causing excessive current.

Question 1 of 15

What is the unit of electric current?

Electric current is the flow of electric charge, measured in Amperes.

Question 2 of 15

What is the unit of electrical resistance?

Resistance opposes the flow of current, measured in Ohms.

Question 3 of 15

What is the relationship between voltage, current, and resistance (Ohm's Law)?

Ohm's Law states Voltage (V) equals Current (I) times Resistance (R).

Question 4 of 15

What is voltage?

Voltage is the potential difference causing current to flow.

Question 5 of 15

Which of the following is a good conductor of electricity?

Copper has low resistance and easily allows current to flow.

Question 6 of 15

What type of circuit allows current to flow through only one path?

In a series circuit, components are connected end-to-end, forming a single path.

Question 7 of 15

What is the unit of electrical power?

Power is the rate at which electrical energy is transferred, measured in Watts.

Question 8 of 15

What is the formula for calculating power (P) using voltage (V) and current (I)?

Power is calculated as the product of voltage and current.

Question 9 of 15

What happens in an open circuit?

An open circuit has a break, preventing current from flowing.

Question 10 of 15

What is a short circuit?

A short circuit offers very low resistance, potentially causing excessive current.

Question 11 of 15

Which component stores electrical energy in an electric field?

A capacitor stores energy by accumulating electric charge on its plates.

Question 12 of 15

What type of charge do electrons have?

Electrons carry a negative electrical charge.

Question 13 of 15

What is the source of electricity in a typical DC circuit?

Batteries provide a direct current (DC) source.

Question 14 of 15

What does 'AC' stand for in electrical terminology?

AC stands for Alternating Current, where the current periodically reverses direction.

Question 15 of 15

Which of these is a passive electrical component?

A resistor dissipates energy and doesn't provide gain or control signals like active components.

Voltage Lab

eletrical basic Quiz