What happens to the magnetic field strength inside a long solenoid when the curr
Practice Questions
Q1
What happens to the magnetic field strength inside a long solenoid when the current through it is increased?
It decreases
It remains constant
It increases
It becomes zero
Questions & Step-by-Step Solutions
What happens to the magnetic field strength inside a long solenoid when the current through it is increased?
Correct Answer: Magnetic field strength increases.
Step 1: Understand what a solenoid is. A solenoid is a coil of wire that creates a magnetic field when electricity flows through it.
Step 2: Know that the magnetic field strength inside the solenoid depends on the amount of electric current flowing through the wire.
Step 3: Remember the relationship: the magnetic field strength is directly proportional to the current. This means that if you increase the current, the magnetic field strength will also increase.
Step 4: Conclude that when the current through the solenoid is increased, the magnetic field strength inside the solenoid becomes stronger.
