1- Two rods are made of different materials, but have the same dimension. When t

Question

1- Two rods are made of different materials, but have the same dimension. When the same electric current runs through them, the voltage across rod 1 is twice the voltage across rod 2. Which rod has higher resistivity?

Rod 1

Rod 2

Rod 1 and 2 have the same resistivity.

There is not enough information to answer the question.

2- Two metal rods are made of the same material but with different dimensions. If rod 1 has greater resistance than rod 2, then rod 1 must have greater length than rod 2.

True

False

Rod 1

Rod 2

Rod 1 and 2 have the same resistivity.

There is not enough information to answer the question.

2- Two metal rods are made of the same material but with different dimensions. If rod 1 has greater resistance than rod 2, then rod 1 must have greater length than rod 2.

True

False

Explanation / Answer

1 Rod 2 is the correct option because it is provide lot resistance to the flow of cuurent in the same length

2.false because resistance is diretly proptional to length for resitance to be equal

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