Where can i download NCERT Class 12 Physics Solutions Alternating Current?

Q: How to download NCERT Class 12 Physics Solutions Alternating Current?

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Physics

NCERT Class 12 Physics Solutions Alternating Current- NCERT Solutions prepared for CBSE students by the best teachers in Delhi.

Chapter 7 – Alternating Current

Question 7.1: A 100 resistor is connected to a 220 V, 50 Hz ac supply.

(a) What is the rms value of current in the circuit?

(b) What is the net power consumed over a full cycle?

Question 7.2:

(a) The peak voltage of an ac supply is 300 V. What is the rms voltage?

(b) The rms value of current in an ac circuit is 10 A. What is the peak current?

Question 7.3: A 44 mH inductor is connected to 220 V, 50 Hz ac supply. Determine the rms value of the current in the circuit.

Question 7.4: A 60 μF capacitor is connected to a 110 V, 60 Hz ac supply. Determine the rms value of the current in the circuit.

Question 7.5: In Exercises 7.3 and 7.4, what is the net power absorbed by each circuit over a complete cycle. Explain your answer.

Question 7.6: Obtain the resonant frequency ωr of a series LCR circuit with L = 2.0 H, C = 32 μF and R = 10 . What is the Q-value of this circuit?

Question 7.7: A charged 30 μF capacitor is connected to a 27 mH inductor. What is the angular frequency of free oscillations of the circuit?

Question 7.8: Suppose the initial charge on the capacitor in Exercise 7.7 is 6 mC. What is the total energy stored in the circuit initially? What is the total energy at later time?

Question 7.9: A series LCR circuit with R = 20 , L = 1.5 H and C = 35 μF is connected to a variablefrequency 200 V ac supply. When the frequency of the supply equals the natural frequency of the circuit, what is the average power transferred to the circuit in one complete cycle?

Question 7.10: A radio can tune over the frequency range of a portion of MW broadcast band: (800 kHz to 1200 kHz). If its LC circuit has an effective inductance of 200 μH, what must be the range of its variable capacitor?

[Hint: For tuning, the natural frequency i.e., the frequency of free oscillations of the LC circuit should be equal to the frequency of the radiowave.]

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NCERT Solutions for class 12

Download NCERT Solutions for Class 12 all subjects, Get free Class 12 all subjects solutions for questions for all chapters in Class 12 all subjects solved by best teachers as per latest NCERT (CBSE) book syllabus and guidelines.

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NCERT Solutions for Class 12 Physics

Download NCERT Solutions for Class 12 Physics, Get free Class 12 Physics solutions for questions for all chapters in Class 12 Physics solved by best teachers as per the latest NCERT (CBSE) book syllabus and guidelines.

The Physics chapter wise exercise questions with solutions will help you to complete your classwork, revise important concepts and get higher marks in Class 12 exams. Get chapter wise solutions. Download Class 12 Physics NCERT Solutions in pdf free. All questions have been solved in a step by step manner to give a better understanding of key concepts of Physics in NCERT Class 12.

The solutions provided here cover all exercises given at the end of chapter Physics. Please click on the links below and free download the pdf for solutions for Class 12 NCERT chapter Physics. Solve all NCERT questions given in Class 12 Physics which will help in giving advantage and prepare them better for class tests and CBSE exams.

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FAQ

Is NCERT enough of class 12 boards?

It is acceptable having decent information on NCERT books who are wishing to make sure about 75 or up to 85% in 12th BOARD Exams. Here good knowledge means done all chapters-examples and revised many times.

But to score above 95% NCERT is not enough. You need to accomplish extra difficult work by investing some additional amounts of energy By Practicing CBSE Sample Papers and CBSE Worksheets.

You must do 10 pervious year BOARD paper and solve a many as the question you can. It's advisable to practice the previous 10 years Board exam papers. So, that one can get a brief understanding of the exam pattern.

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