Electromagnetic Induction and Alternating Currents NEET PYQ Analysis

Electromagnetic Induction and Alternating Currents NEET PYQ Analysis (2020-2026)

The table below shows the number of questions asked from the electromagnetic induction and alternating current chapter in the NEET Physics paper (2020-2026). This analysis will help aspirants understand the trend and prioritise their NEET 2027 preparation.

Advantages of Solving NEET PYQ: Electromagnetic Induction and Alternating Currents

Electromagnetic Induction and Alternating Currents is difficult for many students since the unit includes conceptual as well as numerical questions. Solving previous years’ questions assists students in gaining insight into concepts frequently asked in NEET Physics and recognising patterns in the questions.

The other advantage of working on this topic regularly is that it enables students to make optimum use of the chapter-wise weightage in NEET Physics. Some advantages of solving Electromagnetic Induction and Alternating Currents NEET PYQs are listed below

• Practising Electromagnetic Induction and Alternating Currents NEET PYQ helps students understand the question pattern.
• This chapter is among the do-or-die chapters for NEET.
• Solving NEET previous year questions builds speed and accuracy.
• Attempting NEET PYQs helps identify physics important formulas.

Students who are wondering how to study Physics for NEET have to focus on Electromagnetic Induction and Alternating Currents topics for NEET, like Faraday’s Law, Lenz’s Law, Eddy currents, self and mutual inductance, RMS values, impedance, resonance in LCR circuits, transformers, and AC generators, which are highly scoring and directly derived from NCERT Class 12 Physics.

NEET PYQ Electromagnetic Induction and Electric Currents

Understanding this chapter needs both theory and practice. Attempting the NEET question papers gives a clear idea of the question pattern. Given below are some Electromagnetic Induction and Alternating Currents NEET PYQ. Students can allot time to solve these questions in their NEET preparation timetable. This approach reduces the chances of negative marking during the NEET exam.

Question 1:

To an AC power supply of 220 V at 50 Hz, a resistor of $20\Omega$, a capacitor of reactance $25\Omega$, and an inductor of reactance $45\Omega$ are connected in series. The corresponding current in the circuit and the phase angle between the current and the voltage are, respectively.

Options:

1. $15.6\text{ A}$ and $45^\circ$
2. $7.8\text{ A}$ and $30^\circ$
3. $7.8\text{ A}$ and $45^\circ$
4. $15.6\text{ A}$ and $30^\circ$

Correct Answer: 3) $7.8\text{ A}$ and $45^\circ$

Explanation:
Net reactance: $X = X_L - X_C = 45 - 25 = 20\Omega$
Impedance: $Z = \sqrt{R^2 + X^2} = \sqrt{20^2 + 20^2} = 20\sqrt{2}\Omega$
Current: $I = \frac{V}{Z} = \frac{220}{20\sqrt{2}} \approx 7.8\text{ A}$ and $\tan\phi = \frac{X}{R} = 1 \Rightarrow \phi = 45^\circ$.

Question 2:

In a series LCR circuit, the inductance $L = 10,\text{mH}$, capacitance $C = 1,\mu\text{F}$, and resistance $R = 100\Omega$. The frequency at which resonance occurs is?

Options:

1. $15.9\ \text{rad/s}$
2. $15.9\ \text{kHz}$
3. $1.59\ \text{rad/s}$
4. $1.59\ \text{kHz}$

Correct Answer: 4) $1.59\ \text{kHz}$

Explanation:
Resonant frequency: $f_r = \frac{1}{2\pi\sqrt{LC}}$
Substituting values: $f_r = \frac{1}{2\pi\sqrt{10\times10^{-3}\times10^{-6}}} \approx 1.59\times10^3\text{ Hz} = 1.59\text{ kHz}$.

Question 3:

A 12 V, 60 W lamp is connected to the secondary of a step-down transformer, whose primary is connected to the AC mains of 220 V. Assuming the transformer to be ideal, what is the current in the primary winding?

Options:

1. $0.27\text{ A}$
2. $2.7\text{ A}$
3. $3.7\text{ A}$
4. $0.37\text{ A}$

Correct Answer: 1) $0.27\text{ A}$

Explanation:
For an ideal transformer: $P_{in} = P_{out}$
$\Rightarrow V_{in} I_{in} = 60$
$\Rightarrow 220 \times I_{in} = 60 \Rightarrow I_{in} = 0.27\text{ A}$.

Question 4:

The peak voltage of the AC source is equal to: (NEET 2022)

Options:

1. The RMS value of the AC source
2. $\sqrt{2}$ times the rms value of the ac source
3. $\frac{1}{\sqrt{2}}$ times the rms value of the ac source
4. The value of the voltage supplied to the circuit

Correct Answer: 2) $\sqrt{2}$ times the rms value of the ac source

Explanation:
Relation between peak and RMS voltage:
$V_{peak} = \sqrt{2},V_{rms}$.

Question 5:

A Step-Down Transformer connected to an AC mains supply of 220V is made to operate at 11V, 44W lamp. Ignoring power losses in the Transformer, what is the current in the primary circuit?

Options:

1. $0.2\text{ A}$
2. $0.4\text{ A}$
3. $2\text{ A}$
4. $4\text{ A}$

Correct Answer: 1) $0.2\text{ A}$

Explanation:
For ideal transformer: $P_{in} = P_{out}$
$\Rightarrow V_p I_p = 44$
$\Rightarrow 220 \times I_p = 44 \Rightarrow I_p = 0.2\text{ A}$.

NEET 2027 Scoring Topics of Electromagnetic Induction and Alternating Currents

Studying the Electromagnetic Induction and Alternating Currents chapter becomes easier when students focus on the important topics first. To make concepts clear, aspirants can refer to the NCERT books for NEET. Provided below is a table that includes the main topics. Questions from these topics are asked in the NEET Electromagnetic Induction and Alternating Currents previous year questions.

How Many Questions Come from Electromagnetic Induction in NEET?Every year, 2-3 questions are asked by the NTA from the Electromagnetic Induction and Alternating Currents chapter. Sometimes it may go up to 4, depending on the paper. Mainly, conceptually based and numerically based questions appear. As per the weightage, it covers around 8% of the Physics section. A structured revision strategy of this chapter makes the concepts easier to recall. Practising numerical-based problems improves speed during the exam.

Is Electromagnetic Induction a Tough Chapter?

Many students find this chapter tough at first. The biggest confusion comes in understanding Lenz’s law and sign conventions. Some aspirants also struggle with the direction of the induced current. But once the basics are clear, the questions become easier. Overall, it is not a very difficult chapter if the base is strong. With consistent practice, students can master the electromagnetic induction chapter.