Best Strategies to Score High in JEE Main Current Electricity Mock Tests
Current Electricity is a cornerstone chapter in JEE Physics, encompassing concepts like Ohm's law, Kirchhoff's rules, electrical resistivity, and circuit analysis. Excelling in this chapter boosts your ability to tackle both direct numerical and conceptual questions in the exam. Take this dedicated mock test to master the foundational principles of current flow and reinforce your confidence for JEE Main & Advanced!
Mock Test Instructions for the Current Electricity:
- 20 questions from Current Electricity
- Time limit: 20 minutes
- Single correct answer per question
- Correct answers appear in bold green after submission
How Can JEE Mock Tests Help You Master Current Electricity?
- Identify weak areas in Ohm's law, resistivity, and circuit concepts through regular mock testing.
- Improve speed in calculation-based circuit problems by simulating exam conditions with practice tests.
- Solidify your understanding of Kirchhoff’s rules and their application in complex loops and junctions.
- Use feedback from mock tests to target key topics like drift velocity, combination of resistances, and Wheatstone bridge.
- Build exam temperament and effectively manage time while handling lengthy circuit analysis questions.
Sharpen Circuit Analysis with Expert-Designed JEE Current Electricity Mock Tests
- Apply theoretical concepts to real exam-style problems using topic-focused mock tests on Current Electricity.
- Practice distinguishing between series and parallel resistor logic for quick evaluation in multi-step questions.
- Mock tests highlight misconceptions in measurement tools like potentiometer and meter bridge, crucial for JEE scoring.
- Track your mastery of formulas for current density, drift velocity, and their quantitative application in test scenarios.
- Boost accuracy in internal resistance, EMF, and power dissipation questions by simulating actual JEE exam pressure.
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| 1 | Online FREE Mock Test for JEE Main Chemistry |
| 2 | Online FREE Mock Test for JEE Main Maths |
| 3 | Online FREE Mock Test for JEE Main Physics |
Important Study Materials Links for JEE Exams
FAQs on Current Electricity Mock Test for JEE Main 2025-26 Preparation
1. What is current electricity?
Current electricity refers to the flow of electric charges, typically electrons, through a conductor like a wire. It is measured in amperes (A). This movement is driven by a difference in electric potential (voltage) and forms the basis for operation in most electrical circuits.
2. State Ohm’s law and its mathematical expression.
Ohm's Law states that the current (I) flowing through a conductor between two points is directly proportional to the voltage (V) across the two points, provided the temperature and other physical conditions remain constant. The formula is:
V = IR
where V is voltage, I is current, and R is resistance.
3. What is the SI unit of electric current?
The SI unit of electric current is the ampere (A). One ampere is defined as the flow of one coulomb of charge per second through a conductor.
4. What factors affect the resistance of a conductor?
The resistance (R) of a conductor depends on:
- Length (l): Resistance increases with length.
- Cross-sectional area (A): Resistance decreases with greater area.
- Material: Different materials have different resistivities.
- Temperature: Resistance of most metals increases with temperature.
5. How is electrical power calculated in a circuit?
Electrical power (P) is the rate at which electrical energy is consumed or produced. It is calculated using:
P = VI
where V is voltage and I is current. Alternative formulas: P = I2R or P = V2/R.
6. What is meant by resistivity of a material?
The resistivity (ρ) of a material is a property that quantifies how strongly a given material opposes the flow of electric current. It is measured in ohm-meter (Ω·m) and is independent of the shape or size of the material sample.
7. What happens when resistors are connected in series and in parallel?
In series: The total resistance (Rtotal) is the sum of all individual resistances. Current remains same through each resistor.
In parallel: The reciprocal of the total resistance is the sum of the reciprocals of each resistance. The voltage across each resistor is the same. This arrangement reduces total resistance.
8. What is the current electricity rate in Lucknow?
As of 2024, the current electricity rate in Lucknow for domestic users generally ranges from ₹3 to ₹7 per unit (kWh), depending on the slab and usage. For the most accurate and updated rates, refer to the latest tariffs provided by UPPCL (Uttar Pradesh Power Corporation Ltd.).
9. Distinguish between emf and potential difference.
EMF (electromotive force) is the maximum potential difference provided by a source when no current flows. Potential difference is the voltage measured between any two points in a circuit during current flow. EMF includes internal resistance; potential difference is across external circuit elements.
10. Practice Question: If a wire of resistance 5 Ω carries a current of 2A, what is the voltage across it?
Given R = 5 Ω, I = 2A.
By Ohm’s Law: V = IR = 2 × 5 = 10 V
So, the voltage across the wire is 10 volts.
11. Name one application of current electricity in daily life.
One important application of current electricity is in household lighting. Electrical energy powers bulbs and other lighting devices, making use of controlled current flow for illumination and convenience.
12. What are some important theory questions from current electricity for NEET/JEE exams?
Important theory questions include:
- State Ohm’s law and derive the relationship mathematically.
- Explain the significance of internal resistance in a cell.
- Describe Kirchhoff’s laws with appropriate circuit diagrams.
- Differentiate between resistance and resistivity.
- Explain the effect of temperature on resistance and its practical applications.
