An ELECTROMAGNET can be made stronger by which of the following? [ALL of these] Having MORE colls in the wire Using a WOODEN core DECREASING the current

Question

Question

An ELECTROMAGNET can be made stronger by which of the following? [ALL of these] Having MORE colls in the wire Using a WOODEN core DECREASING the current

Answer 1

Having MORE coils in the wire

Answer 2

## Step1: Understand the components that impact an electromagnet's strength. ## Step2: Recognize that having more coils in the wire increases the total length of wire carrying the current, which increases the electromagnetic field created around the wire. ## Step3: Acknowledge that a wooden core would not enhance the electromagnetic effect, as wood does not conduct magnetic fields effectively. Ferromagnetic materials, such as iron, are preferred. ## Step4: Identify that decreasing the current would result in a weaker magnetic field being generated because the strength of the magnetic field is directly proportional to the current flowing through the wire. ### \(\text{Important Formula: The strength of an electromagnet} \propto \text{number of coils} \times \text{current through the coils}\) ## Step5: Conclude that of the options provided, having more coils is the only factor that will actually make an electromagnet stronger.

Question

An ELECTROMAGNET can be made stronger by which of the following? [ALL of these] Having MORE colls in the wire Using a WOODEN core DECREASING the current

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Answer

Explain

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