The charge flowing in a conductor changes with time as $Q ( t )=\alpha t -\beta t ^2+\gamma t ^3$. Where $\alpha, \beta$ and $\gamma$ are constants. Minimum value of current is :
JEE MAIN 2023, 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
- 1Equivalent resistance between the adjacent corners of a regular $n$-sided polygon of uniform wire of resistance $R$ would be:View Solution
- 2An electrical circuit consists of ten $100 \,\Omega$ resistors. Out of these $10$ resistors, a group of $n _1$ resistors are connected in parallel and another group of $n _2$ resistors are separately connected in parallel. These two groups are then connected in series and this combination is connected to a voltage source of $100 \,V$. If the net current though the circuit is $2.5 \,A$. The values of $n _1$ and $n _2$ areView Solution
- 3The ammeter reading in the circuit below is .............. $A$View Solution
- 4If ${R_1}$ and ${R_2}$ are respectively the filament resistances of a $200$ $watt$ bulb and $100$ $watt$ bulb designed to operate on the same voltage, thenView Solution
- 5In the circuit shown, $R_1$ is increased. What happens to the reading of the voltmeter (ideal)?View Solution
- 6Three resistors each of $2\, ohm$ are connected together in a triangular shape. The resistance between any two vertices will beView Solution
- 7In a potentiometer experiment, it is found that no current passes through the galvanometer when the terminals of the cell are connected across $52\ cm$ of the potentiometer wire. If the cell is shunted by a resistance of $ 5\,\Omega$, a balance is found when the cell is connected across $40\ cm$ of the wire. Find the internal resistance of the cell ........... $\Omega$View Solution
- 8Power dissipated across the $8 \,\,\Omega$ resistor in the circuit shown here is $2\,\, watt.$ The power dissipated in watt units across the $3 \,\,\Omega$ resistor isView Solution
- 9View SolutionThe potentiometer is best for measuring voltage, as
- 10View SolutionAn energy source will supply a constant current into the load if its internal resistance is