Whatever energy the electrons have when they come out of one terminal of the battery, they completely use it up on their way around the circuit, and they stagger back into the other terminal of the battery totally exhausted, with no energy left.
If each coulomb of electrons has 6 joules of energy when they leave the battery, then that's the energy they'll give up to the circuit before they return to the battery.
For each coulomb of charge that moves through that circuit, each flashlight bulb
will take 3 joules of energy away from that coulomb, and turn the energy into heat
and light.
==> 2 bulbs, 3 joules per coulomb that flows through each bulb, total 6 joules
per coulomb that flows around the circuit.
Note:
The question says that the bulbs are in series, but that wasn't necessary.
The energy consumed by the bulbs would be the same if they're in parallel.
A cool extra factoid:
The battery gives each coulomb of electrons that leaves it 6 joules of energy.
There's a special name for "1 joule per coulomb of charge". That's the "<em>volt</em>".
A battery that gives each coulomb of charge 6 joules of energy is a 6-volt battery.
Answer:
Five times
Explanation:
Given the codes as follows:
- int upperCaseLetters = 0;
- String str = "abcdEfghI";
- boolean found = false;
-
- for (int i = 0; i < str.length() && !found; i++)
- {
- char ch = str.charAt(i);
-
- if (Character.isUpperCase(ch))
- {
- found = true;
- }
- }
The for loop will stop when the first uppercase letter is found in the str. This condition is set in the for loop condition ( i < str.length() && !found)
Since the the first upper case letter is the fifth character in the given str, the for loop will run for five rounds. In the fifth round the condition in the if statement (Line 9) will be evaluated to true and then set the true value to found variable (Line 11). This will terminate the loop in the next iteration.
Answer:
•The user can edit the chart directly.
hoped i;m right
Explanation:
Answer:
False
Explanation:
The maintenance phase of the waterfall model for software development involves making changes to the entire system or some parts of it for improved performance. Integration and testing is the step at which all units developed at the implementation stage are brought together to form a whole functioning system. At this stage, the system is constantly checked for proper functionality so it can be deployed.
