Yajnika

Ashok0210

Asked: March 5, 2021In: Class 12 Physics

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 200μH, 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 radio wave.]

Class 12 Physics CBSE and UP Board Alternating Current Chapter-7 Exercise 7.10 NCERT Solutions for Class 12 Physics Chapter 7 Question 10

Ranamita

Asked: March 5, 2021In: Class 8 Maths

Solve the following equations and check your results: 5x+9=5+3x

NCERT Solutions for Class 8 Mathematics Chapter 2 Important NCERT Questions Linear Equations in one Variable Chapter 2 Exercise 2.3 NCERT Books for Session 2022-2023 CBSE Board Questions No: 3

Ashok0210

Asked: March 5, 2021In: Class 12 Physics

A series LCR circuit with R = 20 Ω, L = 1.5 H and C = 35 μF is connected to a variable frequency 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?

Class 12 Physics CBSE and UP Board Alternating Current Chapter-7 Exercise 7.9 NCERT Solutions for Class 12 Physics Chapter 7 Question 9

Ashok0210

Asked: March 5, 2021In: Class 12 Physics

Obtain the answers (a) to (b) in Exercise 7.13 if the circuit is connected to a high frequency supply (240 V, 10 kHz). Hence, explain the statement that at very high frequency, an inductor in a circuit nearly amounts to an open circuit. How does an inductor behave in a dc circuit after the steady state?

Class 12 Physics CBSE and UP Board Alternating Current Chapter-7 Exercise 7.14 Additional Exercise NCERT Solutions for Class 12 Physics Chapter 7 Question 14

Ranamita

Asked: March 5, 2021In: Class 8 Maths

Sum of the digits of a two-digit number is 9. When we interchange the digits, it is found that the resulting new number is greater than the original number by 27. What is the twodigit number?

NCERT Solutions for Class 8 Mathematics Chapter 2 Important NCERT Questions Linear Equations in one Variable Chapter 2 Exercise 2.4 NCERT Books for Session 2022-2023 CBSE Board Questions No: 3

Ranamita

Asked: March 5, 2021In: Class 8 Maths

A positive number is 5 times another number. If 21 is added to both the numbers, then one of the new numbers becomes twice the other new number. What are the numbers?

NCERT Solutions for Class 8 Mathematics Chapter 2 Important NCERT Questions Linear Equations in one Variable Chapter 2 Exercise 2.4 NCERT Books for Session 2022-2023 CBSE Board Questions No: 2

Ranamita

Asked: March 5, 2021In: Class 8 Maths

Amina thinks of a number and subtracts 5/2 from it. She multiplies the result by 8. The result now obtained is 3 times the same number she thought of. What is the number?

NCERT Solutions for Class 8 Mathematics Chapter 2 Important NCERT Questions Linear Equations in one Variable Chapter 2 Exercise 2.4 NCERT Books for Session 2022-2023 CBSE Board Questions No: 1

Ranamita

Asked: March 5, 2021In: Class 8 Maths

Solve the following equations and check your results: 3m = 5m – (8/5)

NCERT Solutions for Class 8 Mathematics Chapter 2 Important NCERT Questions Linear Equations in one Variable Chapter 2 Exercise 2.3 NCERT Books for Session 2022-2023 CBSE Board Questions No: 10

Ashok0210

Asked: March 5, 2021In: Class 12 Physics

A coil of inductance 0.50 H and resistance 100 Ω is connected to a 240 V, 50 Hz ac supply. (a) What is the maximum current in the coil? (b) What is the time lag between the voltage maximum and the current maximum?

Class 12 Physics CBSE and UP Board Alternating Current Chapter-7 Exercise 7.13 Additional Exercise NCERT Solutions for Class 12 Physics Chapter 7 Question 13

Ranamita

Asked: March 5, 2021In: Class 8 Maths

Solve the following equations and check your results: 2y + 5/3 = (26/3) – y

NCERT Solutions for Class 8 Mathematics Chapter 2 Important NCERT Questions Linear Equations in one Variable Chapter 2 Exercise 2.3 NCERT Books for Session 2022-2023 CBSE Board Questions No: 9

Yajnika

Solve the following equations and check your results: 5x+9=5+3x

A series LCR circuit with R = 20 Ω, L = 1.5 H and C = 35 μF is connected to a variable frequency 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?

Sum of the digits of a two-digit number is 9. When we interchange the digits, it is found that the resulting new number is greater than the original number by 27. What is the twodigit number?

A positive number is 5 times another number. If 21 is added to both the numbers, then one of the new numbers becomes twice the other new number. What are the numbers?

Amina thinks of a number and subtracts 5/2 from it. She multiplies the result by 8. The result now obtained is 3 times the same number she thought of. What is the number?

Solve the following equations and check your results: 3m = 5m – (8/5)

A coil of inductance 0.50 H and resistance 100 Ω is connected to a 240 V, 50 Hz ac supply. (a) What is the maximum current in the coil? (b) What is the time lag between the voltage maximum and the current maximum?

Solve the following equations and check your results: 2y + 5/3 = (26/3) – y

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