Formulas for Final - 2nd half of semester only Flashcards
Half-Value Layer Formula
(0.5)^n
Tenth-Value Layer Formula
(0.1)^n
100 rad = ? Gy
1 Gy or 100 cGy
Greater than __% of body has burns - high mortality.
50
Effective dose formula:
DE = Ξ£ (Di x Wt), DE is effective dose
Coulomb (C) = ____ electron charges
6.24 x 10^18
Coulombβs Law Formula:
F = k*(π1βπ2/π^2)
F = k*(π1βπ2/π^2)
F is ____
Force
F = k*(π1βπ2/π^2)
k is ____
a constant - 9 x 10^9
F = k*(π1βπ2/π^2)
Q is ____
Charge
F = k*(π1βπ2/π^2)
r is ____
distance
Ampere = ____
1 coulomb/sec
Ohm (Ξ©) = ____
electric resistance, R
electric potential difference is measured in ____.
Volts
Ohmβs Law:
V = IR
Series Circuit: Total Resistance (R) = ?
π π=π 1+π 2+π 3
Series Circuit: Total Current (I) = ?
πΌπ=πΌ1=πΌ2=πΌ3
Series Circuit: Total Voltage (V) = ?
ππ=π1+π2+π3
Parallel Circuit: Total Resistance (R) = ?
π π=1/(1/π 1+1/π 2+1/π 3)
Parallel Circuit: Total Current (I) = ?
πΌπ=πΌ1+πΌ2+πΌ3
Parallel Circuit: Total Voltage (V) = ?
ππ=π1=π2=π3
Electric Power Equation: P = ?
- Power (P) is measured in ____.
P=IV
- Watts
Transformer Law Equation:
ππ /ππ = ππ /ππ
Transformer Law - Turns Ratio:
ππ /ππ
Transformer Law Equation for Current: (2)
πΌπ /πΌπ = ππ/ππ πΌπ /πΌπ = ππ/ππ
Vp > Vs is a ____ transfer.
Step down
Vp < Vs is a ____ transfer.
Step up
Distance formula in radiation protection:
- Where D = ____, or ____
d = ____
π·1/π·2 = (π2)^2/(π1)^2
Where D = dose, or dose rate
d = distance
