WebThe number of dry cells, each of e.m.f. 1.5 volts and internal resistance 0.5 ohm that must be joined in series with a resistance of 20 ohm so as to send a current of 0.6 ampere through the circuit is Medium View solution > View more More From Chapter Current Electricity View chapter > Revise with Concepts WebAnswer (1 of 4): Actually you can get -3 V, 0V, and +3 V. Because cells are directional - they have a positive and a negative. There are four possible ways to connect 2 cells. If you place them in the same direction they will add; if you place them in opposite directions one will subtract. One ...

There are 20 cells connected in series, each having emf E and …

WebThe number of dry cells, each of e.m.f. 1.5 volt and internal resistance 0.5 ohm that must be joined in series with a resistance of 20 ohms, so as to send a current of 0.6 amperes … WebIf the emf and internal resistance of each cell is 1.5 volt and 1Ω respectively then the value of i is. Q. To get maximum current through a resistance of 2.5 Ω, one can use m rows of … labflow energy and specific heat

100 cells each of emf 5V and internal resistance 1 Ω are to

WebZinc–carbon dry cells are single-use primary cells. Zinc-carbon batteries today have been mostly replaced by the more efficient and safe alkaline batteries . History [ edit] Old 3 V zinc–carbon battery (around 1960), with cardboard casing housing two cells in series. WebSep 12, 2024 · Because the electromotive force is not a force, it is common to refer to these sources simply as sources of emf (pronounced as the letters “ee-em-eff”), instead of sources of electromotive force. Figure 10.2. 1: A variety of voltage sources. (a) The Brazos Wind Farm in Fluvanna, Texas; (b) the Krasnoyarsk Dam in Russia; (c) a solar farm; (d ... WebTwo batteries connected in series (like in a flashlight) have sum of the voltage of the two batteries. Two AA batteries (1.5v) in series produces 3v from end to end. Batteries in parallel are kind of like two big bricks standing up side-by … promass trevi