Question

Assertion: An electric bell is a mechanical bell that functions by means of an electromagnet. When an electric current is applied, it produces a repetitive buzzing or clanging sound. Electric bells have been widely used at railroad crossings, in telephones, fire and burglar alarms, as school bells, doorbells, and alarms in industrial plants.
Reason: Electromagnetic force is the force of attraction between the north and south poles of magnets
A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
C. Assertion is correct but Reason is incorrect
D. Both Assertion and Reason are incorrect

Answer 1

Hint:To answer this question, we first need to understand what is electromagnetic force (The electromagnetic force is a form of physical interaction that happens when electrically charged particles interact with each other. It is a combination of both magnetic and electrical forces that work between charged particles. The electromagnetic force can be both appealing and repellent).

Complete step by step answer:
By definition - A mechanical or electronic bell that is powered by an electromagnet is known as an electric bell. The electromagnet produces a magnetic field that draws the armature against it as an electric current passes through the coils, allowing the hammer to hit the bell.

It is correct that an electric bell is a mechanical bell that functions by means of an electromagnet. When an electric current is applied, it produces a repetitive buzzing or clanging sound.So, the assertion is correct but for reason as discussed in the hint also, it is the force acting on the current carrying conductor placed in a magnetic field.

And by definition - An electromagnet is a magnet whose magnetic field is produced by an electric current. Wire wrapped into a coil is used to make electromagnets. A current flowing through the wire produces a magnetic field that is concentrated in the hole, which serves as the coil's nucleus. So by definition reason is not correct.

Therefore, the correct answer is option C.

Note:Magnetism and electricity are inextricably linked. The electromagnet is a powerful example of this. An electromagnet is a magnetic device that is powered by electricity. Permanent magnets are ordinary magnets. The properties of an electromagnet are the same as those of a regular magnet. It has a north and south pole, and steel and iron are drawn to it. It differs from a permanent magnet in that it can be switched on and off.