The Russian Civil War. After the overthrow of the Provisional Government on 7th November, 1917, the All-Russian Congress of Soviets met and handed over power to the Soviet Council of People's Commissars.
A voltmeter is used to measure potentials as shown in Figure 1. The voltmeter has two clips that are colored red and black. When the red clip is connected to the anode and the black clip is connected to the cathode, a positive voltage is detected as shown in Figure 1. If the clips are backwards, a negative voltage is detected. In order to practice using the voltmeter, you can measure the potential of a closed battery. Turn on the meter and if it is not set to voltage push the + button once or twice. 1) Measure the potential difference of a AA (1.5 V) battery.
'What effects the strength of an electromagnet?' Introduction: An electric current flowing through a wire produces a magnetic field. Coiling the wire produces a stronger magnetic field. Coiling it around a soft iron core increases the strength effect; raising the current or the number of coils increases it further.I am going to investigate the raising of the current and how it affects an electromagnet.I think the electromagnet will produce a stronger magnetic filed and pick up more iron fillings. Aim: To investigate factors which affect the strength of the electromagnet and make the strongest electromagnet possible. am going to investigate the raising of the current and how it affects an electromagnet. I think the electromagnet will produce a stronger magnetic filed and pick up more iron fillings. Aim: To investigate factors which affect the strength of the electromagnet and make the strongest electromagnet possible.