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Solution


Q.

Read the passage given below and answer the following questions from (i) to (v).

Ohm’s law is the relationship between potential difference and current in a circuit which was first established by George Simon Ohm. The law states that the current passing through a metallic conductor is directly proportional to the potential difference applied between its ends. V proportional to I space i. e. comma space V equals k I  Where k is the resistance offered by the conductor and is constant for a given conductor. Although a large class of materials is known to follow Ohm’s law, there do exist materials used in circuits that do not follow the direct relationship between V & I.

 

(ii) When a battery of 9 V is connected across a conductor and the current flowing is 0.1 A, the resistance is:
1 90 Ω  
2 0.9 Ω  
3 9 Ω  
4 900 Ω  

Ans.

(1)