EASY
NTSE Stage II
IMPORTANT
Earn 100

Figure shows three electrical appliances connected to a 220 V ac mains. What is the amperage (current rating) of the fuse that should be used in the circuit?
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Important Questions on Electricity

EASY
NTSE Stage II
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SAT>Chapter 26 - Electricity>SAT 2021>Q 5
The cost of coal is Rs 5 per kg and can produce energy of 20 MJkg-1. If a power station uses coal to produce electricity with 25 % efficiency, then the cost of coal for producing 1 unit (1 kWh-1) of electricity in Rs.
MEDIUM
NTSE Stage II
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SAT>Chapter 26 - Electricity>SAT 2021>Q 6
A 10 V battery is connected to a series combination of two resistances of 4000 Ω and 6000 Ω. A non-ideal voltmeter of resistance connected across 4000 Ω reads 3.226 V. What would be the value if the same voltmeter connected across 6000 Ω?
EASY
NTSE Stage II
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SAT>Chapter 26 - Electricity>SAT 2021>Q 7
Consider two circuits:
(i) A: in which N identical bulbs are connected in series across a battery of emf E.
(ii) B: in which N bulbs identical to those in A are connected in parallel across similar battery of emf E.
PA: Power dissipating in each bulb in A.
PB: Power dissipating in each bulb in B.
PAT : Total power delivered by battery in circuit A.
PBT : Total power delivered by battery in circuit B.
EASY
NTSE Stage II
IMPORTANT
EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR SAT>Chapter 26 - Electricity>SAT 2021>Q 8
Seven resistances, each of value given R value are connected between two points A and B as shown in the figure.
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The combined value of resistance between points A and B.