Change of state is accompanied by change of?
temperature
volume
heat content
temperature and volume
volume and heat content
Correct answer is E
No explanation has been provided for this answer.
its pressure reduces but volume remains constant
the product of pressure and volume remains constant
both pressure and volume increases
its pressure remains constant but the volume decreases
both pressure and volume remains constant
Correct answer is B
No explanation has been provided for this answer.
\(\frac{1}{2}\)
\(\frac{2}{\sqrt2}\)
\(\frac{1}{\sqrt2}\)
\(\sqrt 2\)
4
Correct answer is C
No explanation has been provided for this answer.
Alternating current can induce voltage because it has a
ripple value
varying magnetic field
weaker magnetic field than direct current
stonger magnetic field than direct current
high peak value
Correct answer is B
Due to the change in the voltage in an AC, which either increases or decreases, the magnetic field around it is always either collapsing or expanding (varying magnetic field).
784ms-1
80ms-1
78.4ms-1
39.2ms-1
27.7ms-1
Correct answer is E
No explanation has been provided for this answer.