MCQ
Dwarfism results due to :
- AExcess secretion of thyroxin.
- ✓Less secretion of growth hormone.
- CLess secretion of adrenaline.
- DExcess secretion of growth hormone.
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Assertion (A): The magnitude of the magnetic field at a point on the axis of a current-carrying solenoid is inversely proportional to the current flowing through the solenoid.
Reason (R): The magnitude of the magnetic field at a point on the axis of a current-carrying solenoid is directly proportional to the number of turns per unit length of a solenoid.