[amp_mcq option1=”Magnetic field” option2=”Active length of the conductor” option3=”motor depends upon A. Magnetic field B. Active length of the conductor C. Current flow through the conductors” option4=”All above factors” correct=”option4″]
The correct answer is D. All above factors.
The torque developed by a DC motor depends on the following factors:
- Magnetic field: The strength of the magnetic field determines the amount of force that is exerted on the conductor.
- Active length of the conductor: The longer the conductor, the greater the force that is exerted.
- Current flow through the conductors: The greater the current, the greater the force that is exerted.
The torque developed by a DC motor can be calculated using the following formula:
$T = B \cdot I \cdot L$
where:
- $T$ is the torque in Newton-meters (N m)
- $B$ is the magnetic field strength in Tesla (T)
- $I$ is the current in amperes (A)
- $L$ is the active length of the conductor in meters (m)
The torque developed by a DC motor is proportional to the magnetic field strength, the current flow, and the active length of the conductor.