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How many 176 Omega resistors (in parall...

How many `176 Omega` resistors (in parallel) are required to carry 5 A in 220 V line ?

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To solve the problem of how many 176 ohm resistors in parallel are required to carry 5 A in a 220 V line, we can follow these steps: ### Step 1: Calculate the total resistance required for the circuit Using Ohm's Law, we know that: \[ V = I \times R \] Where: - \( V \) is the voltage (220 V) - \( I \) is the current (5 A) ...
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(a) Calculate the resistance of the wire using the graph. (b) How many 176Omega resistors in parallel are required to carry 5A on a 220 V line? (c ) Define electric power. Derive relation between power, potential difference and resistance.

An ideal battery sends a current of 5A in a resistor. When another resistor of value 10 Omega is connected in parallel ,the current through the battery is increased to 6A.Find the resistance of the first resistor.

6Omega and 12Omega resistors are connected in parallel. This combination is connected in series with 10 V battery and 6 Omega resistor. What is the potential differnce between the terminals of the 12Omega resistor ?

Compare the power used in the 2 Omega resistor in each of the following circuits : (i) a 6V battery in series with 1 Omega and 2 Omega resistors, and (ii) a 4 V battery in parallel with 12 Omega and 2 Omega resistors.

A 0.2 k Omega resistor and 15 mu F capacitor are connected in series to a 220 V, 50 Hz ac source. The impadance of the circuit is

A hot plate of an electric oven connected to a 220 V lines has two resistance coils A and B , each of 24 Omega resistance, which may be used separately, in series or in parallel. What are the currents in the three cases ?

Several electric bulbs designed to be used on a 220 V electric supply line, are rated 10 W . How many lamps can be connected in parallel with each other across the two wires of 220 V line if the maximum allowable current is 5 A ?

A battery of e.m.f. 15 V and internal resistance 3 Omega is connected to two resistors 3 Omega and 6 Omega connected in parallel. Find : the current in 3 Omega resistor,

A battery of e.m.f. 15 V and internal resistance 3 Omega is connected to two resistors 3 Omega and 6 Omega connected in parallel. Find : the current in 6 Omega resistor.

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NCERT ENGLISH-ELECTRICITY-Exercise
  1. What determines the rate at which energy is delivered by a current ?

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  2. An electric motor takes 5 A from a 220 V line. Determine the power and...

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  3. A piece of wire of resistance R is cut into five equal parts. These pa...

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  4. Which of the following terms does not represent electrical power in a ...

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  5. An electric bulb is rated 220 V and 100 W. When it is operated on 110 ...

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  6. Two conducting wires of the same material and of equal length and equa...

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  7. How is voltmeter connected in the circuit to measure potential differe...

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  8. A copper wire has a diameter of 0.5 mm and a resistivity of 1.6 xx 10^...

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  9. The value of current, I, flowing in a given resistor for the correspon...

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  10. When a 12 V battery is connected across an unknown resistor, there is ...

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  11. A battery of 9 V is connected in series with resistors of 0.2 Omega, 0...

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  12. How many 176 Omega resistors (in parallel) are required to carry 5 A ...

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  13. Show how you would connect three resistors, each of resistance 6 Omega...

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  14. Several electric bulbs designed to be used on a 220 V electric supply ...

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  15. A hot plate of an electric oven connected to a 220 V lines has two res...

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  16. Compare the power used in the 2 Omega resistor in each of the followin...

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  17. Two lamps, one rated 100 W at 220 V, and the other 60 W at 220 V, are ...

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  18. Which uses more energy, a 250 W TV set in 1 h or a 1200 W toaster in 1...

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  19. An electric heater of resistance 8 Omega draws 15 A from the service m...

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  20. Explain the following : (a) Why is tungsten used almost exclusively ...

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