Pls give the ans of qsn no 17 with soln . A C .,doto.s
. gives
(b) 9.9 ohm
1.1 ohm
S. A current loop or area 0.01 m' and carrying a
or intensity 0.1 T. torque acting loop is
0.001
9. in and
c 1.25* IO•T
(d)0.S
10. 20 ampere current is noning in a long straight wire. The intensity or magoe*
field at
12.
from the wire will be
4. ' Wbne
(b) 10-' Wbm• (c) 8 * Wbm•
An electron (mass 9.0 kg and charge 1.6 C) is moving in
magnetic field or 1.0 wb/m'. Its period of revolution is
(b) i .05 IOS s
(e) 7 - 10
A proton. a deutron and an alpha particle are accelerated through same potential i
then they enter a normal uniform magnetic field. The ratio or their kinetic energies will
A cyclotro" can be used to accelerate
(b) ß-particlcs
"-panicles
(c) neutrons
(d) neutrino
A solenoid 1.5 m Jong and 0.4 cm in diameter possesses 10 turns per cm length. A cerrenl of SA
falls through it. The magnetic field the asis inside the solenoid is
15. The earth magnetic field is about
16. voltmeter of range JV and resistance 2000 cannot be converted (o ammeter or range X
IA
(b) 100 mA
17. In an ammeter or main is pass ng' rough galvanometer. Iftbe
shunted with a 50 resistance. What is the resistance of the galvanometer
@ 1200
18. A, ammeteF*obtained by shunting a son galvanometer
shunt should be connected across it to double its range
(d) None of atwve
_æ 30 Q
(015 0
(a) 100
7
Khadke Classes
