For B, it is because water is a really good conductor of electricity, so the electrician will get shocked
solution;
given
- speed of wave= frequency×wavelength
=460×18
= 8280m/s
Explanation:
<h2>first of all given should be written & by using the formula of speed of sound .</h2>
No, a body can not have its velocity constant, while its speed varies. Rather, it can have its speed constant and its velocity varying. For example in a uniform circular motion.
Answer:
The rms current is 0.3112 A.
Explanation:
Given that,
Suppose, The capacitance is 170 μF and the inductance is 2.94 mH. The resistance in the top branch is 278 Ohms, and in the bottom branch is 151 Ohms. The potential of the power supply is 47 V .
We know that,
When the frequency is very large then the capacitance can be treated as a short circuit and inductance as open circuit.
So,
We need to calculate the rms current
Using formula of current

Where, V = voltage
R = resistance
Put the value into the formula


Hence, The rms current is 0.3112 A.
I think answer should be 15 I think you should google it on the internet