An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?
Answer (2)
A device delivering a current of 15.0 A for 30 seconds transfers approximately 450 Coulombs of charge. This amount of charge corresponds to about 2.81 billion billion electrons flowing through the device. The calculation involves using the relationship between current, charge, and the elementary charge of an electron.
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The correct answer is A. Diversification in investment involves reducing the risks of investment by putting one fund under management into several categories of investment. This strategy helps in spreading the risk across different types of investments, such as stocks, bonds, and real estate, rather than concentrating funds into a single category.
The statement that is FALSE is C. Diversification can completely eliminate the risk of investing in stocks in a portfolio. While diversification can significantly reduce risk by spreading investments across a variety of assets, it cannot completely eliminate all risks, especially systematic risks that affect the entire market.
The correct answer is B. A single premium variable life insurance policy must be issued with a minimum death benefit. This type of policy allows the policyholder to make a one-time lump sum payment and provides a death benefit along with the potential for investment growth.
The correct answer is C. II, III, and IV. These statements highlight the differences between traditional participating life insurance policies and variable life insurance policies. II describes how the investment elements in variable life insurance are transparent and invested in specific funds. III explains the potential for higher returns with variable policies due to market-linked investments. IV suggests that traditional policies focus on steady returns by minimizing the impact of market fluctuations.
The most suitable investment instrument for an investor who is interested in protecting his principal and receiving a steady stream of income is typically bonds, particularly government bonds or high-grade corporate bonds. These securities provide regular interest payments, known as coupon payments, and help preserve the principal by returning the invested amount upon maturity.
