The magnetic flux inside a coil changes uniformly from 12×10-3wb to 24×10-3wb in 12ms.The induced emf in (volts) will be ________

The magnetic flux inside a coil changes uniformly from $12 \times 10^{- 3}$ wb to $24 \times 10^{- 3}$ wb in 12ms.The induced emf in (volts) will be ________

A
12
B
1
C
$12 \times 10^{3}$
D
10

Solution:

Given that $12 \times 10^{- 3}$ wb $ϕ_{2} = 24 \times 10^{- 3}$ wb $△ ϕ = ϕ_{2} - ϕ_{1}$

$= 12 \times 10^{- 3} w$

$△ t = 12 m s = 12 \times 10^{- 3} w$

$e = \frac{d ϕ}{d t} = \frac{12 \times 10^{- 3}}{12 \times 10^{- 3}} = 1$ volt

Related content

Extra Questions for Class 9 Maths with Solutions Chapter Wise

FAQ Metallurgy JEE

Conservation of Biodiversity – Definition, Methods, Examples and Strategies

JEE Main Previous Year Papers Questions With Solutions Chemistry Nitro,Amine and Azo Compounds

Democratic Rights Class 9 Extra Questions Civics Chapter 6

Essay on All that Glitters is not Gold in English for Children and Students

Evans Tries an O-level Important Questions Class 12 English

Short and Long Essay on Corruption in English for Children and Students

Holi Wishes SMS and Messages for Mobile and Whatsapp