Maximum resistance is obtained by connecting resistors in series, and the total resistance is their sum.
Independent Operation Each appliance can be switched on or off independently without affecting others. In a series circuit, if one appliance is switched off or fails, the entire circuit breaks, and all other appliances in that series stop working. 3. Current Appliances draw current based on their power rating and the applied voltage (I = P/V). In parallel, each appliance draws the required current from the supply. 311. Combine three resistors 5Ω, 4.5Ω and 3Ω in such a way that the total resistance of this combination is maximum with value
Asked in WBPSC CS Prelims 2023 · Topic: Electric Current (Series and parallel combination of resistors)
More Physics questions
- A piece of wire of resistance R is cut into three equal parts. These parts are then connected in parallel. If the equivalent resistance of this combination is R₁, then the ratio R/R₁ is
- A wire of resistance R Ω is cut into ten equal parts, which are then joined in parallel. The new resistance is
- How two identical bulbs should be connected to get maximum light? - (1) Both are connected in series - (2) Both are connected in parallel Select the correct answer using the code given below - Code -
- The full-scale deflection current of a meter is 1 mA and its internal resistance is 100 Ω. This meter is to have full deflection when 100 V is measured. What is the value of series resistor to be used?
- A 6-pole lap wound DC machine has an armature resistance of 0.06 Ω. If the machine is rewound for wave winding, then its armature resistance is
- The line constants of a $200$ km, 3- $\phi$, $50$ Hz transmission line are given as following : $A = D = 0 \cdot 938 \angle 1 \cdot 2^\circ$ $B = 131 \cdot 2 \angle 72 \cdot 3^\circ \Omega/ $phase $C = 0 \cdot 001 \angle 90^\circ$ S/phase The sending-end voltage is $230$ kV. The value of the line charging current, when the load is disconnected, will be - $132 \cdot 8$ kA - $100 \cdot 5$ kA - $141 \cdot 5$ A
- Which of the following statements are incorrect? 1. LED lamps do not contain mercury 2. LED lights never fail abruptly, but there is a gradual decrease in the output 3. CFL lamps are more energy-efficient as compared to the LED lamps
- Which cells use the sunlight to make electricity?