If the RMS current in a \(50~\text{Hz}\) AC circuit is \(5~\text{A}\), the value of the current \(\frac{1}{300}~\text{s}\) after its value becomes zero is:
1. \(5\sqrt2~A\)
2. \(5\sqrt{\frac32}~A\)
3. \(\sqrt{\frac56}~A\)
4. \(\frac{5}{\sqrt2}~A\)

Subtopic:  Different Types of AC Circuits |
 68%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

An alternating current generator has an internal resistance Rg and an internal reactance Xg. It is used to supply power to a passive load consisting of a resistance Rg and a reactance XL. For maximum power to be delivered from the generator to the load, the value of XL is equal to :

1. zero

2. Xg

3. -Xg

4. Rg

Subtopic:  Different Types of AC Circuits |
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Which of the following combinations should be selected for better tuning of an LCR circuit used for communication?

1. R = 20 Ω , L = 15 H ,  C = 35 μF

2. R = 25 Ω , L = 2 . 5 H , C = 45 μF

3. R = 15 Ω , L = 3 . 5 H , C = 30 μF

4. R = 25 Ω , L = 1 . 5 H , C = 45 μF

Subtopic:  Different Types of AC Circuits |
 68%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

An inductor of reactance \(1~\Omega\) and a resistor of \(2~\Omega\) are connected in series to the terminals of a \(6~\text{V}\) (RMS) AC source. The power dissipated in the circuit is:
1. \(8~\text{W}\)
2. \(12~\text{W}\)
3. \(14.4~\text{W}\)
4. \(18~\text{W}\)

Subtopic:  Different Types of AC Circuits |
 70%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

As the frequency of an AC circuit increases, the current first increases and then decreases. What combination of circuit elements is most likely to comprise the circuit?

(a) Inductor and capacitor
(b) Resistor and inductor
(c) Resistor and capacitor
(d) Resistor, inductor, and capacitor

Choose the correct option.

1. (b, c)
2. (c, d)
3. (b, d)
4. (a, d)

Subtopic:  Different Types of AC Circuits |
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

In an alternating current circuit consisting of elements in series, the current increases on increasing the frequency of the supply. Which of the following elements are likely to constitute the circuit?

(a) Only resistor
(b) Resistor and an inductor
(c) Resistor and a capacitor
(d) Only a capacitor

Choose the correct option.

1. (b, c)

2. (a, d)

3. (b, d)

4. (c, d)

Subtopic:  Different Types of AC Circuits |
 66%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

For an L-C-R circuit, the power transferred from the driving source to the driven oscillator is P=I2Zcosϕ.
 

a. Here, the power factor  cosϕ ≥ 0 ,   P ≥ 0 .
b. The driving force can give no energy to the oscillator (P = 0) in some cases.
c. The driving force cannot syphon out (P<0) the energy out of the oscillator.
d. The driving force can take away energy out of the oscillator.

1. (a, b, c)
2. (a, c, d)
3. (b, c, d)
4. (c, d)

Subtopic:  Different Types of AC Circuits |
 55%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

When an AC voltage of 220 V is applied to the capacitor C

 

a. the maximum voltage between plates is 220 V.
b. the current is in phase with the applied voltage.
c. the charge on the plates is in phase with the applied voltage.
d. power delivered to the capacitor is zero.

Choose the correct option

1. (b, c)
2. (a, d)
3. (b, d)
4. (c, d)

Subtopic:  Different Types of AC Circuits |
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh