Peak value of emf of an ac source is `Ɛ_0`. What is its rms value ?

Define RQ. What is its value for fats?

The instantaneous current from an a.c. source is given by I=5sim 314t . What is the r.m.s value of the current.

What is ionic product of water? What is its value?

Define emf of a cell. What is its unit?

Write the Chemical name of Saccharin. What is its sweetness value?

Define relative velocity. When is its value zero ?

The density of a substance is 10gm cm^(-3) . What will be its value in S.I. units.

A potentiometer wire of length 100 cm has a resistance of 10 ohm. It is connected in series with a resistance and a battery of emf 2V and of negligible internal resistance. A source of emf 10mV is balanced against a length of 40 cm of the potentiometer wire. What is the value of the external resistance?

Show that the rms value of an ac is 1/sqrt2 of its peak value.