Answer:
(a) 
(b) 
Explanation:
<u>Electric Circuits</u>
Suppose we have a resistive-only electric circuit. The relation between the current I and the voltage V in a resistance R is given by the Ohm's law:
(a) The electromagnetic force of the battery is 
and its internal resistance is 
. Knowing the equivalent resistance of the headlights is 
, we can compute the current of the circuit by using the Kirchhoffs Voltage Law or KVL:
Solving for i
i=2.28\ A
The potential difference across the headlight bulbs is
(b) If the starter motor is operated, taking an additional 35 Amp from the battery, then the total load current is 2.28 A + 35 A = 37.28 A. Thus the output voltage of the battery, that is the voltage that the bulbs have is
A vibrating stretched string has nodes or fixed points at each end. The string will vibrate in its fundamental frequency with just one anti node in the middle - this gives half a wave.
Rearranging for the wavelength
Therefore the longest wavelength standing wave that it can support is 14m
Speed = (distance covered) / (time to cover the distance)
= (6.4 meters) / (4 minutes)
= (6.4/4) (meter/minute) = 1.6 meter per minute .
Total resistance =
5
1
+
5
1
+
5
1
+
5
1
+
5
1
=1ohm
Hence, the maximum resistance which can be made using five resistors each of 1/5 ohm is 1 ohm.
A positron, or an anti-electron, is a particle with a positive charge and the mass of an electron.
