हिंदी

Define the term resistance.

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प्रश्न

Define the term resistance.

परिभाषा
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उत्तर

Resistance is the obstacle that the wire presents to the current flow.

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अध्याय 8: Current Electricity - EXERCISE - 8(A) [पृष्ठ १८६]

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सेलिना Physics [English] Class 10 ICSE
अध्याय 8 Current Electricity
EXERCISE - 8(A) | Q 6.1 | पृष्ठ १८६

संबंधित प्रश्न

Draw a I–V graph for a linear resistor. What does its slope represent? 


The effective resistance of three resistors connected in series is lesser than the lowest of the individual resistances.


An electric bulb is rated ‘240 V, 100 W’.

  1. What information can you get from the above statement?
  2. What will happen if this bulb is connected across 220 V?
  3. Calculate the resistance of the bulb.
  4. Also find the energy consumed by the bulb in 10 minutes.

What is the maximum resistance one can make with ten 1Ω resistors?


Resistors are connected in series if the resistance of the electric circuit is to be ______.


Three resistors are connected in series with a cell. If the current in each resistor is 1.5A, then the current through the cell will be ______.


Match the following:

  Column I   Column II
1. Resistor a. Galvanometer
2. Connecting wire b. Voltmeter
3. Current in an electric circuit c. Copper
4. Potential difference d. Constantan

Define the following:

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5 bulbs are connected in series in a room. One bulb is fused. It is removed and remaining 4 bulbs are again connected in series to the same circuit. What will be the effect on the following physical quantities?

(Increases, Decreases, Remain Same).

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  2. Intensity of light

Observe the given circuit diagram and answer the questions that follow:

  1. Calculate the resistance of the circuit when the key K completes the circuit.
  2. Calculate the current through 3Ω resistance when the circuit is complete.

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