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Electricity
5 Theory-Based MCQ Tests • 10 Questions Each • 50 Questions
Instructions
- There are 5 separate tests with 10 questions each.
- Questions focus only on theory/concepts from the uploaded Electricity MCQ source.
- Submit a test to calculate the score.
- Correct answers remain hidden until the password is entered.
Answer-reveal password is required after submission.
Test 1 — Electric Current & Basic Concepts
10 questions • 1 mark each1. Electric current is best described as:
2. The SI unit of electric current is:
3. The SI unit of electric charge is:
4. One ampere of current corresponds to:
5. In a metallic conductor, electric current is mainly due to the motion of:
6. Conventional current in an external circuit is considered to flow from:
7. Electrons in a metallic conductor move:
8. Electric potential is a:
9. A material that allows electric current to pass through it easily is called a:
10. A material that does not allow electric current to pass through it is called an:
Correct answers are locked.
Test 2 — Resistance, Resistivity & Ohm’s Law
10 questions • 1 mark each1. According to Ohm’s law, at constant temperature, the relationship between potential difference and current is:
2. The graph between potential difference and current for an ohmic conductor is a:
3. Resistance of a conductor is affected by its:
4. For a uniform conductor, resistance is directly proportional to its:
5. For a uniform conductor, resistance is inversely proportional to its:
6. Electrical resistivity of a material mainly depends on its:
7. Two wires of the same material and same length have the same resistance when their:
8. If the length of a wire is doubled while other relevant parameters remain unchanged, its resistance becomes:
9. Metals are generally good conductors because their outer electrons are:
10. The resistance of an electrical conductor represents its opposition to the:
Correct answers are locked.
Test 3 — Series & Parallel Circuits
10 questions • 1 mark each1. When two elements are connected in series, the same quantity through both elements is:
2. In a series circuit, if one bulb becomes fused and opens the circuit, the remaining bulbs:
3. In a parallel connection, the quantity that remains the same across each branch is:
4. In a series combination of resistors, the equivalent resistance is:
5. Connecting electrical devices in parallel in a household circuit allows each device to:
6. If identical resistors are connected in series, increasing their number will generally:
7. If identical resistors are connected in parallel, increasing their number will generally:
8. An ammeter should be connected in a circuit:
9. A voltmeter should be connected:
10. The positive terminals of measuring instruments in a properly connected DC circuit should be connected toward the:
Correct answers are locked.
Test 4 — Heating Effect, Power & Energy
10 questions • 1 mark each1. The heating effect of electric current refers to the production of:
2. An electric heater primarily converts electrical energy into:
3. An electric bulb works primarily on the:
4. The heat produced in a resistor depends on current and:
5. According to Joule’s law, for a resistor at constant conditions, heat produced is proportional to:
6. Electric power is the rate at which:
7. The SI unit of electrical power is:
8. The SI unit of electrical energy is:
9. The commercial unit of electrical energy is:
10. An electricity bill is based on the amount of electrical:
Correct answers are locked.
Test 5 — Electrical Safety, Fuse & Applications
10 questions • 1 mark each1. An electric fuse works mainly on the:
2. A fuse wire is designed to have relatively:
3. When excessive current flows through a fuse, the fuse wire:
4. The fuse is connected in:
5. The purpose of a fuse in a domestic circuit is to:
6. Electricians wear rubber gloves mainly because rubber is a:
7. Connecting wires are commonly made from copper because copper has:
8. The porcelain casing used around a fuse is suitable because porcelain is:
9. Household wiring commonly uses a higher current rating such as 15 A for appliances with:
10. Electric switches and switchboards are commonly made using insulating materials because they:
Correct answers are locked.
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