Explanation

Passage

Unemployment is a key index of economic slack and lost output. But it is not distributed in proportion to people’s ability to face it. It affects painfully the young, women, the unskilled as well as semiskilled, the black person, the older people, and underemployed people in rural areas. The unemployment among specific groups means greater costs to society that can be calculated easily in hours of idleness or dollars of income lost. The other costs include disturbance of the careers and increased juvenile delinquency. There is another cost of unemployment. For labors, continuous unemployment results in “share-the-work” pressures for shorter hours and escalate resistance to technological advances. On business side, the shortcomings of markets results in attempts to raise prices to cover increased costs and to pressures for protection against buying products from abroad.

Question 1: Unemployment is an index of (A) the employment rate (B) economic slack and lost output (C) diminished resources (D) over utilization of capacity Question 2: According to the passage, the unemployment falls most heavily upon all except the (A) unskilled worker (B) semiskilled worker (C) black people (D) white middle class Question 3: The cost to society of unemployment can be measured by all except (A) disruption of careers (B) idleness (C) the death rate (D) lost incomes

Question 4: Serious unemployment results in labor groups to demand

(A) more jobs with shorter hours

(B) “no fire” policies

(C) higher wages to those employed

(D) cost-cutting solutions

Question 5: A normal business reaction to a recession is to press for

(A) restrictive business practices

(B) protection against imports

(C) government action

(D) higher unemployment insurance

Explanation

The charge carriers in semiconductors are electrons and holes.

Explanation

The peak value of current in an AC circuit can be found by dividing the peak voltage by the impedance of the circuit.

Explanation

The angle made by a vector with the x-axis is typically denoted by the Greek letter θ.

Explanation

If there are 25 waves in a 5-second time period, the frequency of the waves can be calculated using the formula: Frequency= Number of waves/Time period = 25/5 =5 Hz

Explanation

The purpose of using an umbrella in the rain is to protect oneself from getting wet.

Explanation

The internal resistance of a device can be found by using additional information such as the voltage-current characteristic curve, as it provides a relationship between the voltage across the device and the current passing through it, allowing the determination of the internal resistance.

Explanation

If the third bulb is connected in series with bulbs A and B, the total resistance in the circuit will increase. As a result, the current flowing through the circuit will decrease, leading to a decrease in the brightness of all bulbs.

Explanation

If light strikes the surface of glass with the equation r=r0 sin(ωt), the equation after reflection will be r=r0 sin(ωt).

Explanation

The product of resistance (R) and capacitance (C), denoted as RC, has dimensions of time.