NEET Current Electricity questions
12 Physics questions on Current Electricity as asked in NEET, newest first.
- A wire of resistance R is cut into 8 equal pieces. From these pieces two equivalent resistances are made by adding four of these together in parallel. Then these two sets are added in series. The net effective…
2025
- A wire of length l and resistance 100 Ω is divided into 10 equal parts. The first 5 parts are connected in series while the next 5 parts are connected in parallel. The two combinations are again connected in series. The…
2024
- Two heaters A and B have power rating of 1 kW and 2 kW, respectively. Those two are first connected in series and then in parallel to a fixed power source. The ratio of power outputs for these two cases is:
2024
- Resistance of a carbon resistor determined from colour codes is (22000 ± 5%) Ω. The colour of third band must be
2023
- 10 resistors, each of resistance R are connected in series to a battery of emf E and negligible internal resistance. Then those are connected in parallel to the same battery, the current is increased n times. The value…
2023
- The resistance of platinum wire at 0°C is 2 Ω and 6.8 Ω at 80°C. The temperature coefficient of resistance of the wire is
2023
- As the temperature increases, the electrical resistance
2022
- Two resistors of resistance, 100 Ω and 200 Ω are connected in parallel in an electrical circuit. The ratio of the thermal energy developed in 100 Ω to that in 200 Ω in a given time is
2022
- A copper wire of length 10 m and radius dfrac10^-2√(π) m has electrical resistance of 10 Ω. The current density in the wire for an electric field strength of 10 (V/m) is
2022
- A resistance wire connected in the left gap of a metre bridge balances a 10 Ω resistance in the right gap at a point which divides the bridge wire in the ratio 3 : 2. If the length of the resistance wire is 1.5 m, then…
2020
- A charged particle having drift velocity of 7.5 × 10^-4 m s^-1 in an electric field of 3 × 10^-10 V m^-1, has a mobility in m^2 V^-1 s^-1 of :
2020
- The solids which have the negative temperature coefficient of resistance are:
2020
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