A Resistor of Unknown Resistance and a 15-Ω Resistor Are

question 63

Multiple Choice

A resistor of unknown resistance and a 15-Ω resistor are connected across a 20-V emf in such a way that a 2.0 A current is observed in the emf. What is the value of the unknown resistance?

• A) 75 Ω
• B) 12 Ω
• C) 7.5 Ω
• D) 30 Ω
• E) 5.0 Ω

Explain the process of keratinization and the role of keratin in the skin.

Distinguish between different types of sweat glands and their functions.

Understand the composition and functions of the hypodermis.

Describe the structure and growth of hair and nails, including their physiological basis.

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Definitions:

Acute Glomerulonephritis

An inflammation of the tiny filters in the kidneys, often following an infection.

Urinary Output

The volume of urine produced and eliminated by the kidneys in a specific time period, typically measured in a medical context to assess kidney health or fluid balance.

Minimal Change Nephrotic Syndrome

A kidney disorder causing significant loss of proteins in the urine, leading to swelling and minimal change seen in kidney tissues.

Corticosteroids

Are a class of steroid hormones that are used in medicine to treat a variety of conditions, including inflammation, autoimmune diseases, and allergies.