JEE Main 2013 (Offline) | Current Electricity Question 290 | Physics

This questions has Statement - $${\rm I}$$ and Statement - $${\rm I}$$$${\rm I}$$. Of the four choices given after the Statements, choose the one that best describes into two Statements.

Statement - $${\rm I}$$ : Higher the range, greater is the resistance of ammeter.
Statement - $${\rm I}$$$${\rm I}$$ : To increase the range of ammeter, additional shunt needs to be used across it.

Statement - $${\rm I}$$ is true, Statement - $${\rm II}$$ is true, Statement - $${\rm II}$$ is the correct explanation of statement - $${\rm I}$$.

Statement - $${\rm I}$$ is true, Statement - $${\rm II}$$ is true, Statement - $${\rm II}$$ is not the correct explanation of statement - $${\rm I}$$.

Statement - $${\rm I}$$ is true, Statement - $${\rm II}$$ is false

Statement - $${\rm I}$$ is false, Statement - $${\rm II}$$ is true

AIEEE 2012

MCQ (Single Correct Answer)

-1

Two electric bulbs marked $$25W$$ $$-$$ $$220$$ $$V$$ and $$100W$$ $$-$$ $$220V$$ are connected in series to a $$440$$ $$V$$ supply. Which of the bulbs will fuse?

Both

$$100$$ $$W$$

$$25$$ $$W$$

Neither

AIEEE 2011

MCQ (Single Correct Answer)

-1

If a wire is stretched to make it $$0.1\% $$ longer, its resistance will:

increase by $$0.2\% $$

decrease by $$0.2\% $$

decrease by $$0.05\% $$

increase by $$0.05\% $$

AIEEE 2010

MCQ (Single Correct Answer)

-1

Two conductors have the same resistance at $${0^ \circ }C$$ but their temperature coefficients of resistance are $${\alpha _1}$$ and $${\alpha _2}.$$ The respective temperature coefficients of their series and parallel combinations are nearly

$${{{\alpha _1} + {\alpha _2}} \over 2},\,{\alpha _1} + {\alpha _2}$$

$${\alpha _1} + {\alpha _2},\,{{{\alpha _1} + {\alpha _2}} \over 2}$$

$${\alpha _1} + {\alpha _2},\,{{{\alpha _1}{\alpha _2}} \over {{\alpha _1} + {\alpha _2}}}$$

$${{{\alpha _1} + {\alpha _2}} \over 2},\,{{{\alpha _1} + {\alpha _2}} \over 2}$$

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