Explanation

A device that is used to convert AC voltage into DC voltage is called A Rectifier.

Inverters and rectifiers are electronic circuits that can change the type of electric current.

a rectifier converts AC to DC.

Explanation

Let’s solve the equation z + 3 = 5

z = 5 - 3 = 2

Hence, if z + 3 = 5,

then z = 2.

Explanation

An angle whose measure is greater than 90°, but less than 180° is called an obtuse angle

Explanation

If a line intersects two coplanar lines, then the two internal angles on the coplanar lines are called corresponding angles.

Explanation

To find the value of y in the equation 3x+y=2, we can substitute the given value of x into the equation and solve for y.

1. Given value of x: x = 4.

2. Substitute the value of x into the equation: 3(4) + y = 2.

3. Simplify the equation: 12 + y = 2.

4. Solve for y by isolating the variable: y = 2 - 12.

5. Simplify the right side of the equation: y = -10.

Therefore, when the value of x is 4 in the equation 3x+y=2, the value of y is -10.

Explanation

1. Count the number of desired outcomes:

- There are 11 white balls.

2. Count the total number of possible outcomes:

- There are 5 blue balls.

- There are 6 red balls.

- There are 11 white balls.

- Add these numbers together: 5 + 6 + 11 = 22 possible outcomes.

3. Calculate the probability by dividing the number of desired outcomes by the total number of possible outcomes:

- Probability = Number of desired outcomes / Total number of possible outcomes

- Probability = 11 / 22 = 0.5

Therefore, the probability of pulling out a white ball from the bag is 0.5, or 50%.

Explanation

1. Count the number of desired outcomes:

- There are 7 red balls.

- There are 9 green balls.

- There are 8 white balls.

- Add these numbers together: 7 + 9 + 8 = 24 desired outcomes.

2. Count the total number of possible outcomes:

- There are 7 red balls.

- There are 8 white balls.

- There are 9 green balls.

- Add these numbers together: 7 + 8 + 9 = 24 possible outcomes.

3. Calculate the probability by dividing the number of desired outcomes by the total number of possible outcomes:

- Probability = Number of desired outcomes / Total number of possible outcomes

- Probability = 24 / 24 = 1

Therefore, the probability of pulling out a red, green, or white ball from the bag is 1, or 100%.

Explanation

when a donor impurity interacts with a pure crystal, it leads to the formation of an n-type semiconductor.

Concept:

The process of deliberate addition of a desirable impurity to a pure semiconductor so as to increase its conductivity is called doping

The impurity atoms added are called doped. 

Semiconductors doped with the impurity atoms are called extrinsic.

Explanation:

The element whose atom has five valance electrons are called pentavalent impurities e.g As, P, Sb, etc

These impurities are called donor impurities because they donate an extra free electron.

The semiconductor material with the majority carrier as the electron is called an n-type semiconductor

Explanation

To find the total amount of money that the person and his friend have when combined, we need to add their individual amounts.

1. Add the amount of money the person has to the amount his friend has:

- The person has 6 rupees.

- His friend has 4 rupees.

- Add these amounts together: 6 + 4 = 10 rupees.

2. The combined amount of money that the person and his friend have is 10 rupees.

Therefore, when the person and his friend's money is combined, they have 10 rupees.

Explanation

To find the price of coffee per kilogram, we need to calculate the weighted average of the prices of components A and B based on their ratio.

1. Calculate the total price of the components:

- Let the weight of component A be 2 units and the weight of component B be 3 units.

- The total price of component A is 2 units * $300/kg = $600.

- The total price of component B is 3 units * $500/kg = $1500.

2. Calculate the total weight of the components:

- The total weight is 2 units + 3 units = 5 units.

3. Calculate the price of coffee per kilogram:

- Divide the total price of the components by the total weight:

- $600 + $1500 = $2100.

- $2100 / 5 units = $420 per kilogram.

Therefore, the price of coffee per kilogram is $420.