हिंदी

Match the pairs. ‘A’ Group ‘B’ Group 1. Free electrons a. V/R 2. Current b. Increases the resistance in the circuit 3. Resistivity c. Weakly attached 4. Resistances in series d. VA/LI

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प्रश्न

Match the pairs.

‘A’ Group  ‘B’ Group 
1. Free electrons a. V/R 
2. Current b. Increases the resistance in the circuit 
3. Resistivity c. Weakly attached 
4. Resistances in series d. VA/LI
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उत्तर

‘A’ Group  Answer
1. Free electrons c. Weakly attached
2. Current a. V/R
3. Resistivity d. VA/LI
4. Resistances in series b. Increases the resistance in the circuit
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अध्याय 3: Current Electricity - Exercise [पृष्ठ ४४]

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बालभारती Science and Technology [English] Standard 9 Maharashtra State
अध्याय 3 Current Electricity
Exercise | Q 5. | पृष्ठ ४४

संबंधित प्रश्न

Choose the correct alternative and rewrite the following sentence.

When the resistance of a conductor increases, the current will ________ increase.


If the amount of electric charge passing through a conductor in 10 minutes is 300 C, the current flowing is:

(a) 30 A
(b) 0.3 A
(c) 0.5 A
(d) 5 A


Using the circuit given below, state which of the following statement is correct?  

(a) When S1 and S2 are closed, lamps A and B are lit.22
(b) With S1 open and S2 closed, A is lit and B is not lit.
(c) With S2 open and S1 closed A and B are lit.
(d) With S1 closed and S2 open, lamp A remains lit even if lamp B gets fused.


Calculate the equivalent resistance between A and B in the adjacent diagram.


An electric current flowing in a wire creates ______ around the wire. 


What happens to the resistance if the conductor is made thinner?

Complete the following sentence:
A fuse is a short piece of wire of high ......... and low


An electric bulb is rated 250 W, 230 V. What information does this convey? Calculate the current through a 60 W lamp rated for 250 V. If the line voltage falls to 200 V, how is the power consumed by the bulb affected?

An electric bulb is rated at 220 V, 100 W. What is its resistance? What maximum current can be passed through it?

Two resistors of 4 Ω and 6 Ω are connected in parallel. The combination is
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( c) Current passing through each of the resistors B, C and D, and
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(i) The resistance of the wire, and

(ii) The heat energy produced in 1 minute.


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  1. The current drawn,
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One unit of electrical energy consumed is equal to 1000 kilowatt-hour.


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