Question

1 fill in the blank 10 points
given the following ma and exposure times, calculate the mas.

	ma	time	mas
a.	200	1/40	type your a
b.	400	3/10	type your a
c.	300	3/5	type your a
d.	100	1/20	type your a
e.	600	1/4	type your a
f.	100	0.05	type your a
g.	400	0.017	type your a
h.	300	0.20	type your a
i.	200	0.33	type your a
j.	1000	0.006	type your a

Explanation:

The formula to calculate mAs is \( \text{mAs} = \text{mA} \times \text{Time} \). We will apply this formula to each part (a - j).

Part a:

Step 1: Identify mA and Time

mA = 200, Time = \( \frac{1}{40} \) s

Step 2: Calculate mAs

\( \text{mAs} = 200 \times \frac{1}{40} = 5 \)

Part b:

Step 1: Identify mA and Time

mA = 400, Time = \( \frac{3}{10} \) s

Step 2: Calculate mAs

\( \text{mAs} = 400 \times \frac{3}{10} = 120 \)

Part c:

Step 1: Identify mA and Time

mA = 300, Time = \( \frac{3}{5} \) s

Step 2: Calculate mAs

\( \text{mAs} = 300 \times \frac{3}{5} = 180 \)

Part d:

Step 1: Identify mA and Time

mA = 100, Time = \( \frac{1}{20} \) s

Step 2: Calculate mAs

\( \text{mAs} = 100 \times \frac{1}{20} = 5 \)

Part e:

Step 1: Identify mA and Time

mA = 600, Time = \( \frac{1}{4} \) s

Step 2: Calculate mAs

\( \text{mAs} = 600 \times \frac{1}{4} = 150 \)

Part f:

Step 1: Identify mA and Time

mA = 100, Time = 0.05 s

Step 2: Calculate mAs

\( \text{mAs} = 100 \times 0.05 = 5 \)

Part g:

Step 1: Identify mA and Time

mA = 400, Time = 0.017 s

Step 2: Calculate mAs

\( \text{mAs} = 400 \times 0.017 = 6.8 \)

Part h:

Step 1: Identify mA and Time

mA = 300, Time = 0.20 s

Step 2: Calculate mAs

\( \text{mAs} = 300 \times 0.20 = 60 \)

Part i:

Step 1: Identify mA and Time

mA = 200, Time = 0.33 s

Step 2: Calculate mAs

\( \text{mAs} = 200 \times 0.33 = 66 \)

Part j:

Step 1: Identify mA and Time

mA = 1000, Time = 0.006 s

Step 2: Calculate mAs

\( \text{mAs} = 1000 \times 0.006 = 6 \)

Answer:

a. 5
b. 120
c. 180
d. 5
e. 150
f. 5
g. 6.8
h. 60
i. 66
j. 6