When the switch $S$, in the circuit shown, is closed, then the value of current $i$ will be ................. $A$
JEE MAIN 2019, Medium
Download our appand get started for free
Experience the future of education. Simply download our apps or reach out to us for more information. Let's shape the future of learning together!No signup needed.*
Similar Questions
- 1Different combination of $3$ resistors of equal resistance $R$ are shown in the figures.View Solution
The increasing order for power dissipation is:
- 2Figure shows a simple potentiometer circuit for measuring a small $e.m.f$. produced by a thermocouple. The meter wire $PQ$ has a resistance $5 \,\Omega$ and the driver cell has an e.m.f. of $2\, V$. If a balance point is obtained $0.600\, m$ along $PQ$ when measuring an e.m.f. of $6.00\, mV$, what is the value of resistance $R$ ............... $\Omega$View Solution
- 3The resistance of a wire is $R$. If the length of the wire is doubled by stretching, then the new resistance will beView Solution
- 4View SolutionThe following four wires are made of the same material and are at the same temperature. Which one of them has highest electrical resistance
- 5Inside $a$ super conducting ring six identical resistors each of resistance $R$ are connected as shown in figure. Imagine a battery of $emf$ $E$ between the point $0$ and $1$, with its positive terminal connected with $O.$View Solution
- 6The potential difference in open circuit for a cell is $2.2\, volts$. When a $4\, ohm$ resistor is connected between its two electrodes the potential difference becomes $2\, volts$. The internal resistance of the cell will be .............. $ohm$View Solution
- 7During lighting, a current pulse, shown in figure, flows from the cloud at a height $1.5\ km$ to the ground. If the breakdown electric field of humid air is about $400\ kVm^{-1}$ , the energy released during lighting would be (in unit of $10^9\ J$ )View Solution
- 8An electric heater consists of a nichrome coil and runs under $220 \,V$, consuming $1 \,kW$ power. Part of its coil burned out and it was reconnected after cutting off the burnt portion.The power it will cunsume now isView Solution
- 9Every atom makes one free electron in copper. If $1.1$ $ampere$ current is flowing in the wire of copper having $1\, mm$ diameter, then the drift velocity (approx.) will be (Density of copper $ = 9 \times {10^3}\,kg\,{m^{ - 3}}$ and atomic weight = $63$)View Solution
- 10In the adjoining circuit, the potential difference across $3\,\,\Omega $ is ................ $\mathrm{V}$View Solution
