Answer:
3 meters
Explanation:
Given that,
Fido is initially standing near the person's feet. Initially, he jogs 10 meters in a straight line to retrieve a stick and carries it 7 m back toward the person before lying on the ground to chew on the stick.
Initially, he covers 10 meters of distance then it comes towards the person and covers 7 meters in front of the person.
It is clear that he is at a distance of 10 meters - 7 meters = 3 meters
That's a <em>parallel</em> circuit. <em>(B)</em>
When current from Point-A reaches the 3-way intersection just to the right of Point-B, it has to make a choice: Either turn left, go through B, and light the lower bulb, or go straight and light the upper bulb.
A circuit that has any "decision" points in it is a parallel circuit. What happens in the real world is: The current splits up. Some of the current that reaches the intersection turns left toward Point-B, and the rest of it goes straight up.
A series circuit is one in which there's only one possible path all the way around. There are no intersections of more than 2 roads, and no electron ever has to decide which way to flow.
An open circuit is one in which there's a break somewhere along the line and electrons can't jump across it. It's like a railroad where a big piece is cut out of the track somewhere. So no trains can travel on that route, and there's no current flowing anywhere in the circuit.
I'm not so sure about a "combination" circuit. I guess you could give that name to a complicated circuit that has some series parts and some parallel-parts. Personally, I'd call that a "series-parallel" circuit. But it really doesn't matter right now. Whatever the word means, the circuit in the picture is definitely not a "combination" circuit.
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Answer: 28°
Explanation:
Snell's law n₁sinθ₁ = n₂sinθ₂
1.33sin32 = 1.5sinθ₂
θ₂ =28°
