Which of the folloewing devices does NOT make use of current carrying conductor in a magnetic field ?
Electric heater
The correct answer is Option 2 i.e. Electric heater.
The device that does not make use of a current-carrying conductor in a magnetic field is the electric heater. An electric heater operates on the principle of Joule heating, where electrical energy is converted into heat energy due to the resistance offered by the heating element (usually made of nichrome wire). When current flows through the element, it encounters resistance, and this resistance causes the wire to heat up. This heat is then transferred to the surrounding area to warm up the space or objects. There is no magnetic field interaction involved in this process, making the electric heater fundamentally different from other electromagnetic devices.
Other options explained:
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Electric Fan: It contains an electric motor, which uses a current-carrying conductor in a magnetic field to produce rotational motion.
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Electric Motor: Based directly on the motor principle, where a current-carrying conductor placed in a magnetic field experiences a force, causing motion.
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Electric Generator: Works on electromagnetic induction, generating current by rotating a conductor in a magnetic field.
Similar Questions
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Statements:
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II) Moving electrons perpendicular to the magnetic field do not experience any force.
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Important Questions from Electricity
'Net metering' is sometimes seen in the news in the context of promoting the
- The complete form of 'IC' in electronics is
Which of the following household items does NOT use the heating effect of current?
The magnetic field produced by a current-carrying wire at a given point depends on which of the following factors?
If the resistance of a conductor is increased to three times, then the current will be: (voltage V remains constant)
