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- 1If power in $3\,\Omega $ is $27\,W$ then what is the power in $2\,\Omega $ ................. $W$View Solution
- 2A battery of internal resistance one ohm and $emf$ $3\,volt$ sends a current through $1\,metre$ of uniform wire of resistance $5\,\Omega $. The pole of the cell of $emf$ $1.4\,volt$ are connected to two points on the wire so that no current passes through this cell. Then, the potential gradient of the wire isView Solution
- 3You are given a resistance wire of length $50\, cm$ and a battery of negligible resistance. In which of the following cases is largest amount of heat generatedView Solution
- 4View SolutionAll of the following statements are true except
- 5On interchanging the resistances, the balance point of a meter bridge shifts to the left by $10\ cm$. The resistance of their series combination is $1\ k\Omega$. How much was the resistance on the left slot before interchanging the resistances? .................. $\Omega$View Solution
- 6View SolutionA constant voltage is applied between the two ends of a uniform metallic wire. Some heat is developed in it. The heat developed is double if
- 7The current in a wire varies with time according to relation $I = 4 + 2t$. The quantity of charge which has passed through a crosssectionn of the wire during the time $t = 2\, s$ to $t = 6\, s$ will be .............. $\mathrm{C}$View Solution
- 8In the given figure, the equivalent resistance between the points $A$ and $B$ is ............ $\Omega$View Solution
- 9In the circuit shown below, The reading of the voltmeter $V$ is ...........View Solution
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