CBSE Sample Paper-05 (Unsolved) SUMMATIVE ASSESSMENT –I SCIENCE (Theory) Class – X Time allowed: 3 hours Maximum Marks: 90 General Instructions: a) All questions are compulsory. b) The question paper comprises of two sections‚ A and B. You are to attempt both the sections. c) Questions 1 to 3 in section A are one mark questions. These are to be answered in one word or in one sentence. d) Questions 4 to 6 in section A are two marks questions. These are to be answered in about 30 words
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up a simple circuit to be able to read the voltage and current when the length of wire changes‚ so I then can work out the resistance. I will be using constantan wire starting of with 1m length and then decreasing it by 0.10m intervals down to 0.20m long. I will not go above 1m or below 0.20m because it may be too long that they resist so much current that the wire burns‚ or the length of the wire is so small that it doesn’t resist any current at all. The length of the wire will be changed by moving
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immersed in a liquid bath. By applying an electrical current‚ a thin paint film forms over all the surfaces in contact with the liquid‚ including those surfaces in recessed portions of the body. The E-coat paint process deposits a thin paint film on the automotive body under the influence of a voltage gradient of about 200 to 300 volts. The water-based E-coat paint bath is conductive with an array of anodes that extends into the bath delivering a DC current. The paint film that forms has physical properties
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Procedure Part II: Ohm’s Law: Electricity‚ Magnets‚ and Circuits Ohm’s Law mA is milliamps‚ and 1000 milliamps equals one Ampere. Move the potential (volts) and resistance (ohms) sliders and observe the current (amps) As voltage increases‚ current increases. As resistance increases‚ current decreases. Fill out the tables below and check your work in the simulation. ( ½ pt each ) Remember‚ the simulation shows milliamps. You should show Amperes V = I * R 8.0 V 0.01 A 800
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and the normal traveling charger to construct the device. This device would be attached to the normal traveling charger. The researchers used two tests to prove if the device is working or not. First is they measured the current being produced by the device. The amount of current being measured is 2000mA. Next‚ the researchers directly test the device by charging a battery. Blue and red lights blinking with yellow lights appear in the charger that means that it is charging. The researchers conclude
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of electrical current. In addition‚ electricity permits the creation and reception of electromagnetic radiation such as radio waves. In electricity‚ charges produce electromagnetic fields which act on other charges. Electricity occurs because of the following‚ an electric charge‚ that is a property of some subatomic particles‚ which determines their electromagnetic interactions. Electrically charged matter is influenced by‚ and produces‚ electromagnetic fields‚ electric current which is a movement
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Electrical Power System By Cameron Cooper The electrical system on the C-12 is a 28 volt system. It also has single phase‚ 400 hertz‚ 115 volt and 26 volt AC power systems. The AC power is provided by two inverters. The main 28 volt electrical power for the C-12 is supplied from any combination of: -One 28 volt‚ 42 amp hour lead acid battery or One 28 volt‚ 34 amp hour nickel cadmium battery (depending on the model); -Two parallel 28 volt‚ 250 amp starter generators on each engine; -One
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II: Ohm’s Law: Electricity‚ Magnets‚ and Circuits ( Ohm’s Law mA is milliamps‚ and _1‚000_____ milliamps equals one Ampere. • Move the potential (volts) and resistance (ohms) sliders and observe the current (amps) As voltage increases‚ current _increases__________. As resistance increases‚ current _decreases (slows)__. Fill out the tables below and check your work in the simulation. ( ½ pt each ) • Remember‚ the simulation shows milliamps. • You should show Amperes V = I
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Procedure Part II: Ohm’s Law: Electricity‚ Magnets‚ and Circuits Ohm’s Law mA is milliamps‚ and_1000_ milliamps equals one Ampere. Move the potential (volts) and resistance (ohms) sliders and observe the current (amps) As voltage increases‚ current _increases_. As resistance increases‚ current ___decreases___. Fill out the tables below and check your work in the simulation. ( ½ pt each ) Remember‚ the simulation shows milliamps. You should show Amperes V = I * R 8.0 V .010A
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leads Wire 220 Ω resistor 560 Ω resistor 1.0kΩ resistor 1. State Kirchhoff’s Current Law. The algebraic sum of the currents entering a node is equal to zero. 2. What is the equation for the total current in a parallel circuit? It= I1+I2+I3…. 3. Determine the total current in the following nodes. 1) It= 2mA+4mA+6mA= 0.012x10^-3=12mA 2) I + I1+I3= I2 I= 2mA+4mA= 1mA I= 1mA- 6mA I= -5mA 4. Determine the total current in the following circuit. It= I1+I2+I3= 10mA+20mA+40mA= 0.07 x 10^-3= 70mA
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