A solenoid produces a uniform magnetic field inside it. What happens to the magn
Practice Questions
Q1
A solenoid produces a uniform magnetic field inside it. What happens to the magnetic field strength if the current through the solenoid is doubled?
It remains the same
It doubles
It quadruples
It halves
Questions & Step-by-Step Solutions
A solenoid produces a uniform magnetic field inside it. What happens to the magnetic field strength if the current through the solenoid is doubled?
Step 1: Understand what a solenoid is. A solenoid is a coil of wire that creates a magnetic field when an electric current passes through it.
Step 2: Know that the magnetic field strength inside a solenoid depends on the amount of current flowing through it.
Step 3: Remember the relationship: if you increase the current, the magnetic field strength increases.
Step 4: If the current is doubled, the magnetic field strength will also double.
Step 5: Conclude that doubling the current results in doubling the magnetic field strength inside the solenoid.
Magnetic Field in a Solenoid – The magnetic field strength inside a solenoid is directly proportional to the current flowing through it, as described by the formula B = μ₀(nI), where B is the magnetic field strength, μ₀ is the permeability of free space, n is the number of turns per unit length, and I is the current.
