What happens to the magnetic field strength if the current in a solenoid is halved?
Practice Questions
1 question
Q1
What happens to the magnetic field strength if the current in a solenoid is halved?
Doubles
Halves
Remains the same
Quadruples
The magnetic field strength is directly proportional to the current, so it halves.
Questions & Step-by-step Solutions
1 item
Q
Q: What happens to the magnetic field strength if the current in a solenoid is halved?
Solution: The magnetic field strength is directly proportional to the current, so it halves.
Steps: 5
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 strength of the magnetic field in a solenoid depends on the amount of electric current flowing through it.
Step 3: Remember the relationship: the magnetic field strength is directly proportional to the current. This means if you change the current, the magnetic field strength changes in the same way.
Step 4: If the current is halved, it means you are reducing the current to half of its original value.
Step 5: Since the magnetic field strength is directly proportional to the current, if the current is halved, the magnetic field strength will also be halved.
