10th-NTSE-Effects of Electric Current

• a

• b

• c

• d

• a

• b

• c

• d

• a

• b

• c

• d

• a

• b

• c

• d

• 10 ohm

• 12 ohm

• 6 ohm

• 4 ohm

• a

• b

• c

• d

• a

• b

• c

• d

• a

• b

• c

• d

Which of the following rule is used to determine the direction of rotation of D.C motor?

• Columb’s Law

• Lenz’s Law

• Fleming’s Right-hand Rule

• Fleming’s Left-hand Rule

Magnetic field inside a long solenoid carrying current is

• same at all points (uniform)

• different at poles and at the centre

• zero

• different at all points