JEE PHYSICS MCQ: CURRENT ELECTRICITY

1 Medium

1 of 1

Understanding +4 | -1

Which of the following statements are incorrect?

I. The order of magnitude of current flowing in household appliances is one ampere.

II. The order of magnitude of current in lightening is about one ampere.

III. The order of magnitude of current in nerves in human body is one ampere.

View answer and explanation

Correct option: A

II and III

Option A (II and III) is correct because the order of magnitude of current in lightning and nerves in the human body is not one ampere.

More Questions from CURRENT ELECTRICITY

Practice All Chapter MCQs →

The specific resistance of a wire is

\mathrm{\rho }

, its volume is

3\,\,{\mathrm{m}^3}

and its resistance is

3\,\,\mathrm{\Omega }

, then its length will be Magnitude of drift velocity per unit electric field is Statement-1: If a resistor is connected to a battery the current decreases when the temperature increases.
Statement-2: For most of the resistors, resistance increases with increase in temperature. The reciprocal of resistance is Corresponding to the resistance

4.7\,\, \times \,\,{10^6}\,\,\mathrm{\Omega }\,\, \pm \,\,5\,\,\%

, which is order of colour coding on carbon resistors? In a meter bridge, the gaps are closed by resistance 2 and 3 ohms. The value of shunt to be added to 3 ohm resistor to shift the balancing point by

22.5\,cm