NCERT Class 11 Physics Short Questions & Answers
2 Combine three resistors 5 Q, 4.5 Q and 3 Q in such a way that the total resistance of this combination is maximum
Answer: 12.5 Q
3 An electron is projected along the axis of a circular conductor carrying the same current. Electron will experience
Answer: no force experienced.
5 The gyro-magnetic ratio of an electron in an H-atom, according to Bohr model, is
Answer: independent of which orbit it is in.
6 A conducting circular loop of radius r carries a constant current i. It is placed in a uniform magnetic field B, such that B is perpendicular to the plane of the loop. The magnetic force acting on the loop is
7 In the series combination of two or more than two resistances
Answer: the current through each resistance is same.
8 An electric heater is connected to the voltage supply. After few seconds, current gets its steady value then its initial current will be
Answer: slightly higher than its steady current
9 If any external conservative force also is applied on the distributed loading then?
Answer: The net force will not be considered, there would be a net force of the distribution, rest will be the external forces
10 For measurement of potential difference, a potentiometer is preferred over voltmeter because
Answer: potentiometer does not take current from the circuit.