Bob F

50% voted series-parallel. 43% voted parallel. 7% voted series. It is in fact a series-parallel circuit. The fuse, switch and variable resistor are in series (one path for the current), and the two lamps are in parallel (the current splits and can take either path to earth).

Here's the circuit.

If you adjust the variable resistor from minimum resistance to maximum resistance, what happens to the two lamps. They both get dimmer. They both get brighter. One gets dimmer as the other gets brighter. Nothing changes.

Series. Parallel. Series-Parallel. None of the above.

What type of electrical circuit is shown in the post below? Series. Parallel. Series-Parallel. None of the above.

It's getting too easy. Yep, all 100% correct. The other lamp will go out. A Series Circuit has only one path to ground, so electrons (current) must go through each component to get back to ground. All loads are placed in series. Therefore: 1. An open in the circuit will disable the entire circuit. 2. The voltage divides (shared) between the loads. 3. The current flow is the same throughout the circuit. 4. The resistance of each load can be different.

Too easy, huh? Well done, you are all correct. It's a series circuit. A series circuit is the simplest circuit. The conductors, control and protection devices, loads, and power source are connected with only one path to ground for current flow. The resistance of each device can be different. The same amount of current will flow through each. The voltage across each will be different. If the path is broken, no current flows and no part of the circuit works. Christmas tree lights are a good example; when one light goes out the entire string stops working.

webbed?

They bweed 'em special ouwt en Blandford.

Sorry, I got the choices wrong. Please read R1 instead of R2 for the voting choices.

In the circuit below, what happens to lamp R1 if lamp R2 goes out? Nothing Lamp R1 gets dimmer Lamp R1 gets brighter Lamp R1 goes out

Series, parallel or series/parallel?

What type of electrical circuit is shown in the post below? a series circuit. a parallel circuit. a series and in parallel.

A VOLTMETER measures the voltage potential across or parallel to the circuit. The Voltmeter measures the amount of electrical pressure difference between two points being measured. Voltage can exist between two points without electron flow.

How about being towed whilst on a bike by a drunk taxi driver?

Has anyone ever tried camping at the camp site in Saye Bay on the North coast? It's about 2km from the harbour according to Google maps. At

OK, nearly half of you struggled with this one, which is ok because it helps me to refocus the questions. The correct answer is Technician B only. A voltmeter is always used in parallel (or across the thing you are measuring). For example. when you measure the voltage across the terminals of a battery you are placing the meter in parallel with the battery. I probably need to define what parallel and series circuits mean, so I will try to do that in the next posts. BF

Technician A says a voltmeter is connected in series to measure voltage. Technician B says it is connected in parallel. Who is correct? Technician A only. Technician B only. Both Technicians A and B. Neither Technicians A nor B.

Most of you were correct. 3.725K can be re-written as 3,725 ohms. The "K" means "kilo" which represents a x1000 multiplier, so you move the decimal point 3 places to the right.

Gary, Yes, I wouldn't mind that. How do we arrange pick up? cheers BF

I will be away tomorrow. So the answer to this one, and the next question will be posted on Tuesday.

A Digital Ohmmeter is being use to measure a component. The meter indicates 3.725K ohms. This indicates 0.3725 ohms. 3.725 ohms. 3,725 ohms. 3,725,000 ohms.

A little bit of indicision on this one, with 3 different voting selections (by the way, I cannot see what you are individually voting). The correct answer is current. When current flows through a lamp filament or a cigarette lighter, heat and light are generated by changing electrical energy to thermal energy. The wire in a fuse melts from the heat generated when too much current flows. You could have as high a voltage as you like (within reason), but the voltage itself would not melt the fuse. It is the current that produces the heat and melts the fuse.

Got the fuel gauge working on JV today. We had previously found out that the original fuel sender unit supplied with the boat was incompatible with the Volvo electronics. So, we got a proper Volvo compatible unit from Coastal rides and fitted it today. It took a bit of messing about with the software before it would recognize the new unit, and then some messing about with the calibration, but all is now ok. It's nice to have a properly with fuel guage. Then took a spin up to Cobs to fill her up. The only down side of the day was the iCom VHF failing again. Looks like exactly the same problem as last time. No display. Took to unit back to Force 4 and asked for a replacement rather than a repair. They will call iCom on Monday. BF

If you'd have got this one wrong, Adam, after seeing the effects on those nice pink fuses today, I would have been very concerned for you. Well done that man! We'll make an electrician out of you yet. BF