AIEEE 2003 | Current Electricity Question 373 | Physics

An ammeter reads upto $$1$$ ampere. Its internal resistance is $$0.81$$ $$ohm$$. To increase the range to $$10$$ $$A$$ the value of the required shunt is

$$0.03\,\Omega $$

$$0.3\,\Omega $$

$$0.9\,\Omega $$

$$0.09\,\Omega $$

AIEEE 2003

MCQ (Single Correct Answer)

-1

The length of a given cylindrical wire is increased by $$100\% $$. Due to the consequent decrease in diameter the change in the resistance of the wire will be

$$200\% $$

$$100\% $$

$$50\% $$

$$300\% $$

AIEEE 2002

MCQ (Single Correct Answer)

-1

If $${\theta _1},$$ is the inversion temperature, $${\theta _n}$$ is the neutral temperature, $${\theta _c}$$ is the temperature of the cold junction, then

$${\theta _i} + {\theta _c} = {\theta _n}$$

$${\theta _i} - {\theta _c} = 2{\theta _n}$$

$${{{\theta _i} + {\theta _C}} \over 2} = {\theta _n}$$

$${\theta _c} - {\theta _i} = 2{\theta _n}$$

AIEEE 2002

MCQ (Single Correct Answer)

-1

The mass of product liberated on anode in an electrochemical cell depends on (where $$t$$ is the time period for which the current is passed).

$${\left( {It} \right)^{1/2}}$$

$$It$$

$$I/t$$

$${I^2}t$$