Answer:
c) All choices listed are definitely true.
Explanation:
a)
- As they are connected in parallel, the voltage drop is equal in all the resistors, by definition of a parallel connection, and equal to the terminal voltage of the battery (assuming that the internal resistance of the battery is negligible).
b)
- Applying Ohm's law to the circuit, we arrive to the following expression:
![I_{tot} = I_{1} +I_{2} + I_{3} \\ I_{tot} =\frac{V}{Req} = \frac{V}{R_{1}} +\frac{V}{R_{2} } +\frac{V}{R_{3}}](https://tex.z-dn.net/?f=I_%7Btot%7D%20%3D%20I_%7B1%7D%20%2BI_%7B2%7D%20%2B%20I_%7B3%7D%20%20%5C%5C%20%20I_%7Btot%7D%20%3D%5Cfrac%7BV%7D%7BReq%7D%20%3D%20%5Cfrac%7BV%7D%7BR_%7B1%7D%7D%20%2B%5Cfrac%7BV%7D%7BR_%7B2%7D%20%7D%20%20%2B%5Cfrac%7BV%7D%7BR_%7B3%7D%7D)
- Simplifying common terms, we have:
![\frac{1}{Req} = \frac{1}{R_{1}} +\frac{1}{R_{2} } +\frac{1}{R_{3}}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7BReq%7D%20%3D%20%5Cfrac%7B1%7D%7BR_%7B1%7D%7D%20%2B%5Cfrac%7B1%7D%7BR_%7B2%7D%20%7D%20%20%2B%5Cfrac%7B1%7D%7BR_%7B3%7D%7D)
- It can be seen that the equivalent resistance, is less than any of the resistances.
d)
- Due to the charge conservation principle, as the current is made from moving charges, the sum of the currents passing through these resistors is equal to the current passing through the battery (KCL).
Problem the mount I cough my so the newer I 75.4
Answer:
Gamma rays
Explanation:
The penetrating power of gamma rays is maximum as compared to beta and alpha rays. Gamma rays are nothing but the photons i.e. the packets of energy. Their energy range lies from kilo electron volts to 8 mega electron volts. It is emitted during the decay of many radioactive isotopes, such as U-238 and I-131. A large amount of energy is produced in decay of uranium 238.
Hence, the correct option is " gamma rays ".