When a Microwave Filter Consisting of Vertical Parallel Metal Rods

question 66

Multiple Choice

When a microwave filter consisting of vertical parallel metal rods is in the absorbing position, oscillating currents are set up in the rods. At any one instant, the current in each rod has the same magnitude and direction. At that instant

• A) the rods will try to move apart horizontally.
• B) the rods will try to move together horizontally.
• C) the rods will try to shift vertically upwards.
• D) the rods will try to shift vertically downwards.
• E) the rods will not be affected because the source of current is not a battery.

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Definitions:

Quantity-fixing Agreements

Arrangements among competitors to limit the amount of goods or services produced or supplied, in order to influence market prices or conditions.

Explicitly Colludes

A situation where companies or individuals openly agree to work together, often illegally, to manipulate prices or markets.

Price-and-quantity-fixing

Practices by which firms set the price and output levels to control market conditions, often regarded as anti-competitive.

Collusion

A secret or illegal cooperation or conspiracy, especially between firms, to deceive or gain an unfair advantage.