The Magnetic Field and the Number of Turns in a Coil

question 39

Multiple Choice

The magnetic field and the number of turns in a coil of wire are doubled. Assuming that all the other parameters remain the same, what happens to the induced emf in that coil of wire?

• A) It is doubled.
• B) It is reduced by a factor of 2.
• C) It is quadrupled.
• D) It is reduced by a factor of 4.
• E) It stays the same.

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Definitions:

Tax Revenues

The income that is received by the government from taxpayers, including individuals and businesses, to fund public expenditures.

Deadweight Loss

The loss of economic efficiency that can occur when the equilibrium for a good or a service is not achieved or is not achievable.

Marginal Tax Rate

The rate at which your last dollar of income is taxed, indicating the percentage of tax applied to your income for each tax bracket in which you qualify.

Income Security

Government programs designed to protect individuals from economic hardships and ensure a minimum level of income.