Preparing for the Joint Entrance Exam (JEE) can be a daunting task. With so many subjects to cover and so many topics to study, it can be challenging to know where to start. One essential topic in the JEE Mains syllabus is the Current Electricity. In this article, we will provide 50+ MCQ questions on the Current Electricity, along with detailed solutions to help you prepare for the JEE Mains exam.
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These 50+ MCQ questions are selected by the experts of studyrate.in and these are more difficult questions, which will help you to better understand Current Electricity JEE Mains MCQ Questions with Answers.
Current Electricity JEE Mains MCQ
Which of the following quantities represents the rate of flow of electric charge?
A) Voltage
B) Current
C) Resistance
D) Power
The SI unit of electric current is:
A) Ohm
B) Ampere
C) Volt
D) Coulomb
In a metallic conductor, the electric current is due to the flow of:
A) Electrons
B) Protons
C) Neutrons
D) Positrons
The resistance of a wire depends on its:
A) Length and area of cross-section
B) Material and temperature
C) Temperature and length
D) Material and area of cross-section
According to Ohm’s Law, the current flowing through a conductor is directly proportional to the:
A) Voltage across the conductor
B) Resistance of the conductor
C) Temperature of the conductor
D) Power dissipated in the conductor
The equivalent resistance of resistors connected in series is:
A) The sum of their individual resistances
B) The reciprocal of the sum of their individual resistances
C) The product of their individual resistances
D) None of the above
Kirchhoff’s junction rule is based on the law of conservation of:
A) Energy
B) Charge
C) Power
D) Voltage
Kirchhoff’s loop rule is based on the law of conservation of:
A) Energy
B) Charge
C) Power
D) Voltage
Two resistors of resistance 4 Ω and 6 Ω are connected in parallel. What is the equivalent resistance?
A) 10 Ω
B) 2 Ω
C) 24 Ω
D) 2.4 Ω
A wire of resistance 20 Ω is bent into a closed loop. What is the equivalent resistance between any two points on the loop?
A) 10 Ω
B) 20 Ω
C) 40 Ω
D) 80 Ω
The power consumed by an electrical appliance can be calculated by the formula:
A) P = V × I
B) P = I^2 × R
C) P = V^2/R
D) All of the above
A 12 V battery is connected to a resistor of 3 Ω. What is the current flowing through the resistor?
A) 4 A
B) 6 A
C) 12 A
D) 36 A
Which of the following materials has the highest resistivity?
A) Silver
B) Copper
C) Aluminum
D) Tungsten
The resistivity of a material depends on its:
A) Length
B) Area of cross-section
C) Temperature
D) Material properties
An electric bulb of resistance 50 Ω is connected to a 220 V source. What is the current flowing through the bulb?
A) 0.45 A
B) 4.4 A
C) 220 A
D) 110 A
Which of the following quantities remains constant in a series circuit?
A) Current
B) Voltage
C) Resistance
D) Power
Which of the following quantities remains constant in a parallel circuit?
A) Current
B) Voltage
C) Resistance
D) Power
When the temperature of a metallic conductor increases, its resistance:
A) Increases
B) Decreases
C) Remains unchanged
D) May increase or decrease depending on the material
The unit of electrical energy is:
A) Watt
B) Ampere
C) Joule
D) Volt
The current flowing through a resistor is 2 A. If the voltage across the resistor is 4 V, what is the resistance?
A) 2 Ω
B) 4 Ω
C) 6 Ω
D) 8 Ω
The voltage drop across a resistor is 6 V when a current of 3 A is flowing through it. What is the resistance of the resistor?
A) 2 Ω
B) 3 Ω
C) 6 Ω
D) 18 Ω
Two resistors of 10 Ω and 15 Ω are connected in series. What is the equivalent resistance?
A) 5 Ω
B) 10 Ω
C) 15 Ω
D) 25 Ω
Two resistors of 4 Ω and 6 Ω are connected in parallel. What is the equivalent resistance?
A) 10/7 Ω
B) 14/5 Ω
C) 10/3 Ω
D) 2 Ω
When three resistors of equal resistance are connected in parallel, the equivalent resistance is 5 Ω. What is the value of each resistor?
A) 5 Ω
B) 10 Ω
C) 15 Ω
D) 25 Ω
A wire of resistance 4 Ω is stretched to double its length. What is its new resistance?
A) 1 Ω
B) 2 Ω
C) 4 Ω
D) 8 Ω
Which of the following is a non-ohmic conductor?
A) Copper wire
B) Carbon resistor
C) Filament of an incandescent bulb
D) Semiconductor diode
Which of the following devices is used to measure electric current?
A) Voltmeter
B) Ammeter
C) Galvanometer
D) Rheostat
The total resistance of three resistors connected in series is 15 Ω. If one of the resistors is removed, what will be the new total resistance?
A) 0 Ω
B) 5 Ω
C) 10 Ω
D) 15 Ω
Which of the following materials is the best conductor of electricity?
A) Aluminum
B) Silver
C) Copper
D) Iron
Two resistors of resistance 8 Ω and 12 Ω are connected in parallel. What is the equivalent resistance?
A) 20/3 Ω
B) 6 Ω
C) 20 Ω
D) 96/5 Ω
We hope there JEE MCQ of Class 12 Current Electricity will help you to score an excellent rank in JEE Mains and Advanced. If you have any queries feel free to write in the comments section. We at Study Rate are always ready to serve our students.
