Question:
Draw a diagram showing resistance in an AC circuit and the voltage and current waveform.
Draw a diagram showing resistance in an AC circuit and the voltage and current waveform.
Show Hint
In a pure resistive AC circuit, voltage and current waveforms rise and fall together with zero phase difference.
Updated On: Jul 5, 2025
Hide Solution
Verified By Collegedunia
Solution and Explanation
The voltage and current are in phase with each other.
Both voltage and current waveforms are sinusoidal and peak at the same time.
The waveform of voltage (V) and current (I) overlap, indicating no phase difference. This means the current changes instantaneously with the voltage in a purely resistive circuit.
Was this answer helpful?
0
0
Top Questions on AC Circuits
- The peak energy stored in an RLC circuit divided by the average energy dissipated in the circuit per radian at resonance is called:
- Two statements are given, one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer from the codes (A), (B), (C), and (D) as given below.
Assertion (A): A series LCR circuit behaves as a pure resistive circuit at resonance.
Reason (R): At resonance, \( X_L = X_C \) gives \( \omega = \frac{1}{\sqrt{LC}} \).
- CBSE CLASS XII - 2025
- Physics
- AC Circuits
- Write the principle of working of an ac generator. Draw its labelled diagram and explain its working.
- CBSE CLASS XII - 2025
- Physics
- AC Circuits
- A resistor of 400 \( \Omega \), an inductor of \( \frac{5}{\pi} \) H, and a capacitor of \( \frac{50}{\pi} \) µF are joined in series across an AC source \( v = 140 \sin (100 \pi t) \) V. Find the rms voltages across these three circuit elements. The algebraic sum of these voltages is more than the rms voltage of source. Explain.
- CBSE CLASS XII - 2025
- Physics
- AC Circuits
- A coil of inductive reactance $\frac{1}{\sqrt{3}} \Omega$ and a resistance 1 $\Omega$ are connected in series to a 200 V, 50 Hz ac source. The time lag between voltage and current is
- AP EAPCET - 2025
- Physics
- AC Circuits
View More Questions
Questions Asked in CBSE CLASS XII exam
Rupal, Shanu and Trisha were partners in a firm sharing profits and losses in the ratio of 4:3:1. Their Balance Sheet as at 31st March, 2024 was as follows:
(i) Trisha's share of profit was entirely taken by Shanu.
(ii) Fixed assets were found to be undervalued by Rs 2,40,000.
(iii) Stock was revalued at Rs 2,00,000.
(iv) Goodwill of the firm was valued at Rs 8,00,000 on Trisha's retirement.
(v) The total capital of the new firm was fixed at Rs 16,00,000 which was adjusted according to the new profit sharing ratio of the partners. For this necessary cash was paid off or brought in by the partners as the case may be.
Prepare Revaluation Account and Partners' Capital Accounts.- CBSE CLASS XII - 2025
- Partnership Accounts
- Explain giving three reasons why tropics show greatest levels of species diversity.
- CBSE CLASS XII - 2025
- Biodiversity
- The element of dilemma, between humanity and patriotism, elevates the character of Dr. Sadao in ‘The Enemy’. Support your answer with evidence from the text.
- CBSE CLASS XII - 2025
- Literature
- Find: \[ \frac{dy}{dx}, \quad \text{if} \quad y = x \tan x + \frac{\sqrt{x^2 + 1}}{2} \]
- CBSE CLASS XII - 2025
- Differentiation
- Solve for \( x \), \[ 2 \tan^{-1} x + \sin^{-1} \left( \frac{2x}{1 + x^2} \right) = 4\sqrt{3} \]
- CBSE CLASS XII - 2025
- Trigonometric Functions
View More Questions