Two wires have resistance of $2$ $\Omega$ and $4$ $\Omega$ connected to same voltage, ratio of heat dissipated at resistance is
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
- 1A cell of internal resistance $r$ drives current through an external resistance $R$ . The power delivered by the cell to the external resistance will be maximum when:View Solution
- 2View SolutionIn the following circuit composed of identical resistors, across which terminals would you connect a battery in order to dissipate energy in all resistors
- 3View SolutionAssertion : Ohm's law is applicable for all conducting elements.
Reason : Ohm's law is a fundamental law
- 4Two bulbs consume same power when operated at $200\, V$ and $300\, V$ respectively. When these bulbs are connected in series across a $D.C$. source of $500\, V$, thenView Solution
- 5A $25\, watt$, $220\, volt$ bulb and a $100\, watt$, $220\, volt$ bulb are connected in parallel across a $220\, volt$ line. Which bulb will glow more brightlyView Solution
- 6View SolutionThe figure shows a network of five resistances and two batteries Which of the batteries is getting charged.
- 7Three resistances of magnitude $2$, $3$ and $5$ $ohm$ are connected in parallel to a battery of $10\, volts$ and of negligible resistance. The potential difference across $3\,\Omega $ resistance will be ............... $volts$View Solution
- 8The circuit shown here is used to compare the $e.m.f.$ of two cells ${E_1}$ and ${E_2}({E_1} > {E_2})$. The null point is at $C$ when the galvanometer is connected to ${E_1}$. When the galvanometer is connected to ${E_2}$, the null point will beView Solution
- 9A bulb rated at ($100\,W$ - $200\,V$) is used on a $100\,V$ line. The current in the bulb isView Solution
- 10Calculate the potential difference between, points $A$ and $B$ and current flowing in $10\,\Omega $ resistor in the part of network belowView Solution
