Processing math: 100%

The power factor of a good choke coil is:

1. Nearly zero

2. Exactly zero

3. Nearly one

4. Exactly one

Subtopic:  Different Types of AC Circuits |
 52%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

L, C and R represent physical quantities inductance, capacitance and resistance respectively. The combination representing the dimension of frequency will be:
1. LC
2. (LC)12
3. (LC)12
4. CL

Subtopic:  Different Types of AC Circuits |
 85%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
Links
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

In an ac circuit, a resistance of R ohm is connected in series with an inductance L. If the phase angle between voltage and current is 45, the value of inductive reactance will be:
1. R4
2. R2
3. R
4. Cannot be found with the given data
Subtopic:  Different Types of AC Circuits |
 81%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
Links
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

advertisementadvertisement

The phase difference between the current and voltage of LCR circuit in series combination at resonance is 

1. 0

2. π/2

3. π

4. –π

Subtopic:  LC Oscillations (OLD NCERT) |
 74%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

In a series resonant circuit, the ac voltage across resistance R, inductance L and capacitance C are 5 V, 10 V and 10 V respectively. The ac voltage applied to the circuit will be 

1. 20 V

2. 10 V

3. 5 V

4. 25 V

Subtopic:  LC Oscillations (OLD NCERT) |
 87%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

In a series LCR circuit, resistance R = 10Ω and the impedance Z = 20Ω. The phase difference between the current and the voltage is 

1. 30°

2. 45°

3. 60°

4. 90°

Subtopic:  Different Types of AC Circuits |
 82%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

advertisementadvertisement

In the circuit shown below, the AC source has voltage V=20cos(ωt) volts with ω=2000 rad/sec. The amplitude of the current is closest to:
           

1. 2 A

2. 3.3 A

3. 25 A

4. 5 A 

Subtopic:  Different Types of AC Circuits |
 55%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
Links
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

In an ac circuit the reactance of a coil is 3 times its resistance, the phase difference between the voltage across the coil to the current through the coil will be:
1. π/3
2. π/2
3. π/4
4. π/6

Subtopic:  Different Types of AC Circuits |
 76%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

The power factor of an ac circuit having resistance (R) and inductance (L) connected in series and an angular velocity ω is 

1. R/ωL

2. R/(R2+ω2L2)1/2

3. ωL/R

4. R/(R2ω2L2)1/2

Subtopic:  Different Types of AC Circuits |
 83%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

advertisementadvertisement

An inductor of inductance L and resistor of resistance R are joined in series and connected by a source of frequency ω. The power dissipated in the circuit is:
1. (R2+ω2L2)V

2. V2R(R2+ω2L2)

3. V(R2+ω2L2)

4. R2+ω2L2V2

Subtopic:  Power factor |
 80%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
Links
To view explanation, please take trial in the course.
NEET 2025 - Target Batch