why ammeter is connected in series class 10?
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In a series connection, the current flowing through all the components of the circuit is the same. Ammeter aims at measuring the current in the circuit, hence it is connected in series so that the same current that is there in the circuit flows through it and gets measured.
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Key Points An ammeter is a measuring device used to measure the electric current in a circuit. A voltmeter is connected in parallel with a device to measure its voltage, while an ammeter is connected in series with a device to measure its current.
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Measuring Voltage with a Voltmeter A voltmeter is connected in parallel with whatever device it is measuring. A parallel connection is used because objects in parallel experience the same potential difference.
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Any coil or atty that fails to connect will give a reading 0f 9.9 or an error indication on a mod. THIS IS VITALLY IMPORTANT! IF ANY COIL READS 0.0 DO NOT USE IT... 0.0 MEANS ZERO OHMS THAT IS A SHORT CIRCUIT, BATTERIES EXPLODE WHEN CONNECTED TO SHORT CIRCUITS!!!!!!!!!!!!
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The total resistance of a series circuit is equal to the sum of individual resistances. Voltage applied to a series circuit is equal to the sum of the individual voltage drops. The voltage drop across a resistor in a series circuit is directly proportional to the size of the resistor.
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It is very simple. The 10 ohms resistor connected across a 12 volts battery dissipates the power of 1.44 A² X 10 ohm = 14.4 watts. When an additional 30 ohms is added in series to the existing 10 ohms the power dissipated will be equal to 144 v²/40 ohms = 14.4 watts/4 = 3.6 watts.
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A DC ammeter is thus sensitive to which way round it is connected; most are marked with a positive terminal. A moving coil meter indicates the average (mean) of a varying current through it, which is zero for AC. For this reason moving-coil meters are only usable directly for DC, not AC.
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Measuring current. A device called an ammeter is used to measure current. Some types of ammeter have a pointer on a dial, but most have a digital display. To measure the current flowing through a component in a circuit, you must connect the ammeter in series with it.
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If the multimeter reads 1 or displays OL, it's overloaded. You will need to try a higher mode such as 200kΩ mode or 2MΩ (megaohm) mode. There is no harm if this happen, it simply means the range knob needs to be adjusted.
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An ammeter is used to measure the current flowing through a component/circuit. Since, current remains same in series connection and also the resistance of an ammeter is very small due to which it doesn't affect the current to be measured. So, an ammeter is connected in series to measure current.
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A voltmeter is connected in parallel with a device to measure its voltage, while an ammeter is connected in series with a device to measure its current.
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Electric current and potential difference Electric circuits can be series or parallel. An ammeter measures current and a voltmeter measures a potential difference. Some materials have low resistance and are conductors; others are insulators.
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An ammeter is a measuring device used to measure the electric current in a circuit. A voltmeter is connected in parallel with a device to measure its voltage, while an ammeter is connected in series with a device to measure its current.
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Connect the multimeter to the positive and negative battery terminals. If you don't have a voltage of around 12.6 volts, you may have a bad battery. Now start the car, and look for a revised voltage over 10. If your voltage drops below 5 when the car is running, it is bad and should be replaced right away.
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Principle PMMC Ammeter: When current carrying conductor placed in a magnetic field, a mechanical force acts on the conductor, if it is attached to a moving system, with the coil movement, the pointer moves over the scale.
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Solution : The resistance coils are double would to avoid induction effects Magnetic field deu to current in one half of the coil is cancelled by magnetic field due to current in the other half of the coil (which is in opposite direction).
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One multimeter can take the place of a voltmeter, which measures voltage; an ammeter, which measures current; and an ohmmeter, which measures resistance.