The amount of heat produced in a resistor when a current is passed through it can be found using
Easy
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
- 1The battery in the diagram is to be charged by the generator $G$. The generator has a terminal voltage of $120$ $\mathrm{volts}$ when the charging current is $10$ $\mathrm{amperes}.$ The battery has an $\mathrm{emf}$ of $100$ $\mathrm{volts}$ and an internal resistance of $1$ $\mathrm{ohm}.$ In order to charge the battery at $10$ $\mathrm{amperes}$ charging current, the resistance $R$ should be set at ................ $\Omega$View Solution
- 2In circuit shown below, the resistances are given in $ohms$ and the battery is assumed ideal with emf equal to $3\, volt$. The voltage across the resistance $R_4$ is ................. $V$View Solution
- 3Three copper rods are subjected to different potential difference. Compare the drift speed of electrons through them. Assume that all $3$ are at the same temperature.View Solution
Length Diameter Potential difference $(A)$ $L$ $3d$ $V$ $(B)$ $2L$ $d$ $2V$ $(C)$ $3L$ $2d$ $2V$ - 4A cell of internal resistance $1.5\,\Omega $ and of $e.m.f.$ $1.5\, volt$ balances $500\, cm$ on a potentiometer wire. If a wire of $15\,\Omega $ is connected between the balance point and the cell, then the balance point will shiftView Solution
- 5Six resistors of $3 \;\Omega$ each are connected along the sides of a hexagon and three resistors of $6\; \Omega$ each are connected along $A C, A D$ and $A E$ as shown in the figure. The equivalent resistance between $A$ and $B$ is equal toView Solution
- 6View SolutionElectroplating does not help in
- 7Figure shows three resistor configurations $\mathrm{R} 1, \mathrm{R} 2$ and $\mathrm{R} 3$ connected to $3 \mathrm{~V}$ battery. If the power dissipated by the configuration $\mathrm{R} 1, \mathrm{R} 2$ and $\mathrm{R} 3$ is $\mathrm{P} 1, \mathrm{P} 2$ and $\mathrm{P} 3$, respectively, thenView Solution
Figure:
- 8A $100\, watt$ bulb working on $200 \,volt$ and a $200\, watt$ bulb working on $100\, volt$ haveView Solution
- 9Three identical resistors $R_1=R_2=R_3$ are connected as shown to a battery of constant e.m.f. The power dissipated is ...........View Solution
- 10There is a current of $20$ amperes in a copper wire of ${10^{ - 6}}$ square meter area of cross-section. If the number of free electrons per cubic meter is ${10^{29}}$, then the drift velocity isView Solution