QUESTION IMAGE
Question
given the following ma and exposure times, calculate the mas.
| ma | time | mas | |
|---|---|---|---|
| b | 400 | 3/10 | type your an |
| c | 300 | 3/5 | type your an |
| d | 100 | 1/20 | type your an |
| e | 600 | 1/4 | type your an |
| f | 100 | 0.05 | type your an |
| g | 400 | 0.017 | type your an |
| h | 300 | 0.20 | type your an |
| i | 200 | 0.33 | type your an |
| j | 1000 | 0.006 | type your an |
To calculate mAs (milliampere - seconds), we use the formula \( \text{mAs}=\text{mA}\times\text{Time} \). We will calculate the mAs for each part (a - j) one by one.
Part a
Step 1: Identify the formula
We know that \( \text{mAs}=\text{mA}\times\text{Time} \). Here, \( \text{mA} = 200 \) and \( \text{Time}=\frac{1}{40}\text{ s} \).
Step 2: Substitute the values into the formula
\( \text{mAs}=200\times\frac{1}{40} \)
\( \text{mAs}=\frac{200}{40}=5 \)
Part b
Step 1: Identify the formula
The formula for mAs is \( \text{mAs}=\text{mA}\times\text{Time} \). Here, \( \text{mA} = 400 \) and \( \text{Time}=\frac{3}{10}\text{ s} \).
Step 2: Substitute the values into the formula
\( \text{mAs}=400\times\frac{3}{10} \)
\( \text{mAs}=40\times3 = 120 \)
Part c
Step 1: Identify the formula
Using \( \text{mAs}=\text{mA}\times\text{Time} \), with \( \text{mA} = 300 \) and \( \text{Time}=\frac{3}{5}\text{ s} \).
Step 2: Substitute the values into the formula
\( \text{mAs}=300\times\frac{3}{5} \)
\( \text{mAs}=60\times3=180 \)
Part d
Step 1: Identify the formula
For \( \text{mA} = 100 \) and \( \text{Time}=\frac{1}{20}\text{ s} \), use \( \text{mAs}=\text{mA}\times\text{Time} \).
Step 2: Substitute the values into the formula
\( \text{mAs}=100\times\frac{1}{20} \)
\( \text{mAs} = 5 \)
Part e
Step 1: Identify the formula
Given \( \text{mA} = 600 \) and \( \text{Time}=\frac{1}{4}\text{ s} \), use \( \text{mAs}=\text{mA}\times\text{Time} \).
Step 2: Substitute the values into the formula
\( \text{mAs}=600\times\frac{1}{4} \)
\( \text{mAs}=150 \)
Part f
Step 1: Identify the formula
With \( \text{mA} = 100 \) and \( \text{Time} = 0.05\text{ s} \), use \( \text{mAs}=\text{mA}\times\text{Time} \).
Step 2: Substitute the values into the formula
\( \text{mAs}=100\times0.05 \)
\( \text{mAs}=5 \)
Part g
Step 1: Identify the formula
For \( \text{mA} = 400 \) and \( \text{Time}=0.017\text{ s} \), use \( \text{mAs}=\text{mA}\times\text{Time} \).
Step 2: Substitute the values into the formula
\( \text{mAs}=400\times0.017 \)
\( \text{mAs}=6.8 \)
Part h
Step 1: Identify the formula
Given \( \text{mA} = 300 \) and \( \text{Time}=0.20\text{ s} \), use \( \text{mAs}=\text{mA}\times\text{Time} \).
Step 2: Substitute the values into the formula
\( \text{mAs}=300\times0.20 \)
\( \text{mAs}=60 \)
Part i
Step 1: Identify the formula
With \( \text{mA} = 200 \) and \( \text{Time}=0.33\text{ s} \), use \( \text{mAs}=\text{mA}\times\text{Time} \).
Step 2: Substitute the values into the formula
\( \text{mAs}=200\times0.33 \)
\( \text{mAs}=66 \)
Part j
Step 1: Identify the formula
For \( \text{mA} = 1000 \) and \( \text{Time}=0.006\text{ s} \), use \( \text{mAs}=\text{mA}\times\text{Time} \).
Step 2: Substitute the values into the formula
\( \text{mAs}=1000\times0.006 \)
\( \text{mAs}=6 \)
Final Answers
a. \( \boldsymbol{5} \)
b. \( \boldsymbol{120} \)
c. \( \boldsymbol{180} \)
d. \( \boldsymbol{5} \)
e. \( \boldsymbol{150} \)
f. \( \boldsymbol{5} \)
g. \( \boldsymbol{6.8} \)
h. \( \boldsymbol{60} \)
i. \( \boldsymbol{66} \)
j. \( \boldsymbol{6} \)
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To calculate mAs (milliampere - seconds), we use the formula \( \text{mAs}=\text{mA}\times\text{Time} \). We will calculate the mAs for each part (a - j) one by one.
Part a
Step 1: Identify the formula
We know that \( \text{mAs}=\text{mA}\times\text{Time} \). Here, \( \text{mA} = 200 \) and \( \text{Time}=\frac{1}{40}\text{ s} \).
Step 2: Substitute the values into the formula
\( \text{mAs}=200\times\frac{1}{40} \)
\( \text{mAs}=\frac{200}{40}=5 \)
Part b
Step 1: Identify the formula
The formula for mAs is \( \text{mAs}=\text{mA}\times\text{Time} \). Here, \( \text{mA} = 400 \) and \( \text{Time}=\frac{3}{10}\text{ s} \).
Step 2: Substitute the values into the formula
\( \text{mAs}=400\times\frac{3}{10} \)
\( \text{mAs}=40\times3 = 120 \)
Part c
Step 1: Identify the formula
Using \( \text{mAs}=\text{mA}\times\text{Time} \), with \( \text{mA} = 300 \) and \( \text{Time}=\frac{3}{5}\text{ s} \).
Step 2: Substitute the values into the formula
\( \text{mAs}=300\times\frac{3}{5} \)
\( \text{mAs}=60\times3=180 \)
Part d
Step 1: Identify the formula
For \( \text{mA} = 100 \) and \( \text{Time}=\frac{1}{20}\text{ s} \), use \( \text{mAs}=\text{mA}\times\text{Time} \).
Step 2: Substitute the values into the formula
\( \text{mAs}=100\times\frac{1}{20} \)
\( \text{mAs} = 5 \)
Part e
Step 1: Identify the formula
Given \( \text{mA} = 600 \) and \( \text{Time}=\frac{1}{4}\text{ s} \), use \( \text{mAs}=\text{mA}\times\text{Time} \).
Step 2: Substitute the values into the formula
\( \text{mAs}=600\times\frac{1}{4} \)
\( \text{mAs}=150 \)
Part f
Step 1: Identify the formula
With \( \text{mA} = 100 \) and \( \text{Time} = 0.05\text{ s} \), use \( \text{mAs}=\text{mA}\times\text{Time} \).
Step 2: Substitute the values into the formula
\( \text{mAs}=100\times0.05 \)
\( \text{mAs}=5 \)
Part g
Step 1: Identify the formula
For \( \text{mA} = 400 \) and \( \text{Time}=0.017\text{ s} \), use \( \text{mAs}=\text{mA}\times\text{Time} \).
Step 2: Substitute the values into the formula
\( \text{mAs}=400\times0.017 \)
\( \text{mAs}=6.8 \)
Part h
Step 1: Identify the formula
Given \( \text{mA} = 300 \) and \( \text{Time}=0.20\text{ s} \), use \( \text{mAs}=\text{mA}\times\text{Time} \).
Step 2: Substitute the values into the formula
\( \text{mAs}=300\times0.20 \)
\( \text{mAs}=60 \)
Part i
Step 1: Identify the formula
With \( \text{mA} = 200 \) and \( \text{Time}=0.33\text{ s} \), use \( \text{mAs}=\text{mA}\times\text{Time} \).
Step 2: Substitute the values into the formula
\( \text{mAs}=200\times0.33 \)
\( \text{mAs}=66 \)
Part j
Step 1: Identify the formula
For \( \text{mA} = 1000 \) and \( \text{Time}=0.006\text{ s} \), use \( \text{mAs}=\text{mA}\times\text{Time} \).
Step 2: Substitute the values into the formula
\( \text{mAs}=1000\times0.006 \)
\( \text{mAs}=6 \)
Final Answers
a. \( \boldsymbol{5} \)
b. \( \boldsymbol{120} \)
c. \( \boldsymbol{180} \)
d. \( \boldsymbol{5} \)
e. \( \boldsymbol{150} \)
f. \( \boldsymbol{5} \)
g. \( \boldsymbol{6.8} \)
h. \( \boldsymbol{60} \)
i. \( \boldsymbol{66} \)
j. \( \boldsymbol{6} \)