1
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
An electric kettle takes 4 A current at 220 V. How much time will it take to boil 1 kg of water from temperature 20oC ? The temperature of boiling water is 100oC
A
12.6 min
B
4.2 min
C
6.3 min
D
8.4 min
2
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
A particle of mass m, charge Q and kinetic energy T enters a transverse uniform magnetic field of induction $$\overrightarrow B $$. After 3 seconds the kinetic energy of the particle will be
A
T
B
4 T
C
3 T
D
2 T
3
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
A thin conducting ring of radius R is given a charge +Q. The electric field at the centre O of the ring due to the charge on the part AKB of the ring is E. The electric field at the centre due to the charge on the part ACDB of the ring is

AIPMT 2008 Physics - Electrostatics Question 47 English
A
E along KO
B
3E along OK
C
3E along KO
D
E along OK
4
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
A current of 3 amp. flows through the 2 $$\Omega $$ resistor shown in the circuit. The power dissipated in the 5 $$\Omega $$ resistor is

AIPMT 2008 Physics - Current Electricity Question 76 English
A
1 watt
B
5 watt
C
4 watt
D
2 watt