A straight conductor carrying current is placed parallel to a uniform magnetic field. The force on the conductor will be:
zero
Correct Answer: Zero
The force on a current-carrying conductor in a magnetic field is given by:
F = BIL sinθ
- B = magnetic field strength
- I = current
- L = length of conductor
- θ = angle between conductor and field direction
When the conductor is parallel to the field, θ = 0°, so sin 0° = 0.
∴ F = 0 (zero force)
Maximum force occurs when θ = 90° (conductor perpendicular to field): F = BIL.
Similar Questions
Which of the following symbols represents a rheostat?
Two resistors of 2 Ω and X Ω are connected in series to a 10 V battery. If the current flowing through the resistors is 2 A, then what will be the value of X (in Ohm)?
The resistance of a conductor depends on the:
According to the right-hand thumb rule, if the thumb points in the direction of current, then the fingers show:
If an electric heater consumes 1000 W of power, how much electrical energy does it use in 1 hour?
If a bulb is rated at 60 W and operates at 120 V, what is the current flowing through the bulb?
Why are alloys preferred for the heating elements in devices like toasters?
Why does a metal filament bulb glow when electric current passes through it?
A science project requires a variable resistor to adjust the current in a circuit. Which symbol should be used in the schematic diagram to represent this component?
If a resistor is connected to a voltage source and the resistance is halved while the voltage remains constant, what happens to the heat produced in a fixed time?
Important Questions from Current Electricity
Which of the following is a bad conductor of electricity?
In general, in an alternating current circuit
The laws of electromagnetic induction have been used in the construction of a
A 220 volt and 100 watt bulb is connected to a 110 volt source. The power consumption by the bulb is
In the series combination of resistance in current electricity, which of the following is correct?
