How much voltage (in terms of the power source voltage bV) will the capacitor have when it has started at zero volts potential difference, it is connected to the power supply and resistor and onehalf the characteristic time has passed (i. e. t= T(tau)/2)?

The voltage is  

Explanation:

From the question we are told that

   The time that has passed is  

 Here is know as the time constant

    The voltage of the  power source is  

Generally the voltage equation for charging a capacitor is mathematically represented as

=>  

=>  

=>  

=>      

i think it's 35 meters

answergravity;